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Finding the Fourth Proportional to 61,296.20, 91,944.30 and 45,744.20

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Solution

The fourth proportional to 61,296.20, 91,944.30 and 45,744.20 is: 68,616.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,296.20 : 91,944.30 = 45,744.20 : x
  2. Step 2: Convert to fraction form
    61,296.20/91,944.30 = 45,744.20/x
  3. Step 3: Cross multiply
    61,296.20x = 91,944.30 × 45,744.20
  4. Step 4: Simplify right side
    61,296.20x = 4,205,918,448.06
  5. Step 5: Solve for x
    x = 4,205,918,448.06/61,296.20
  6. Step 6: Final answer
    x = 68,616.30

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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.