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Finding the Fourth Proportional to 371,753.13, 557,316.17 and 161,232.51

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Solution

The fourth proportional to 371,753.13, 557,316.17 and 161,232.51 is: 241,712.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,753.13 : 557,316.17 = 161,232.51 : x
  2. Step 2: Convert to fraction form
    371,753.13/557,316.17 = 161,232.51/x
  3. Step 3: Cross multiply
    371,753.13x = 557,316.17 × 161,232.51
  4. Step 4: Simplify right side
    371,753.13x = 89,857,484,146.52
  5. Step 5: Solve for x
    x = 89,857,484,146.52/371,753.13
  6. Step 6: Final answer
    x = 241,712.78

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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.