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Finding the Fourth Proportional to 116,603.40, 174,905.10 and 69,947.40

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Solution

The fourth proportional to 116,603.40, 174,905.10 and 69,947.40 is: 104,921.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,603.40 : 174,905.10 = 69,947.40 : x
  2. Step 2: Convert to fraction form
    116,603.40/174,905.10 = 69,947.40/x
  3. Step 3: Cross multiply
    116,603.40x = 174,905.10 × 69,947.40
  4. Step 4: Simplify right side
    116,603.40x = 12,234,156,991.74
  5. Step 5: Solve for x
    x = 12,234,156,991.74/116,603.40
  6. Step 6: Final answer
    x = 104,921.10

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Similar ratio
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1.5x scale

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.