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Finding the Fourth Proportional to 313,154.61, 469,747.71 and 88,531.17

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Solution

The fourth proportional to 313,154.61, 469,747.71 and 88,531.17 is: 132,801.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,154.61 : 469,747.71 = 88,531.17 : x
  2. Step 2: Convert to fraction form
    313,154.61/469,747.71 = 88,531.17/x
  3. Step 3: Cross multiply
    313,154.61x = 469,747.71 × 88,531.17
  4. Step 4: Simplify right side
    313,154.61x = 41,587,314,371.12
  5. Step 5: Solve for x
    x = 41,587,314,371.12/313,154.61
  6. Step 6: Final answer
    x = 132,801.22

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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.