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Finding the Fourth Proportional to 61,209,140.20, 91,813,710.30 and 61,209,140.20

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Solution

The fourth proportional to 61,209,140.20, 91,813,710.30 and 61,209,140.20 is: 91,813,710.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,209,140.20 : 91,813,710.30 = 61,209,140.20 : x
  2. Step 2: Convert to fraction form
    61,209,140.20/91,813,710.30 = 61,209,140.20/x
  3. Step 3: Cross multiply
    61,209,140.20x = 91,813,710.30 × 61,209,140.20
  4. Step 4: Simplify right side
    61,209,140.20x = 5,619,838,266,034,884
  5. Step 5: Solve for x
    x = 5,619,838,266,034,884/61,209,140.20
  6. Step 6: Final answer
    x = 91,813,710.30

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Double scale
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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.