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Finding the Fourth Proportional to 371,693.56, 557,342.70 and 147,044.92

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Solution

The fourth proportional to 371,693.56, 557,342.70 and 147,044.92 is: 220,489.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,693.56 : 557,342.70 = 147,044.92 : x
  2. Step 2: Convert to fraction form
    371,693.56/557,342.70 = 147,044.92/x
  3. Step 3: Cross multiply
    371,693.56x = 557,342.70 × 147,044.92
  4. Step 4: Simplify right side
    371,693.56x = 81,954,412,734.08
  5. Step 5: Solve for x
    x = 81,954,412,734.08/371,693.56
  6. Step 6: Final answer
    x = 220,489.19

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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.