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Finding the Fourth Proportional to 487,759.17, 731,564.95 and 132,801.18

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Solution

The fourth proportional to 487,759.17, 731,564.95 and 132,801.18 is: 199,181.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,759.17 : 731,564.95 = 132,801.18 : x
  2. Step 2: Convert to fraction form
    487,759.17/731,564.95 = 132,801.18/x
  3. Step 3: Cross multiply
    487,759.17x = 731,564.95 × 132,801.18
  4. Step 4: Simplify right side
    487,759.17x = 97,152,688,606.64
  5. Step 5: Solve for x
    x = 97,152,688,606.64/487,759.17
  6. Step 6: Final answer
    x = 199,181.68

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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.