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Finding the Fourth Proportional to 411,318.96, 616,593.96 and 144,930.48

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Solution

The fourth proportional to 411,318.96, 616,593.96 and 144,930.48 is: 217,260.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,318.96 : 616,593.96 = 144,930.48 : x
  2. Step 2: Convert to fraction form
    411,318.96/616,593.96 = 144,930.48/x
  3. Step 3: Cross multiply
    411,318.96x = 616,593.96 × 144,930.48
  4. Step 4: Simplify right side
    411,318.96x = 89,363,258,587.90
  5. Step 5: Solve for x
    x = 89,363,258,587.90/411,318.96
  6. Step 6: Final answer
    x = 217,260.25

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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.