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Finding the Fourth Proportional to 371,694.56, 557,344.20 and 147,045.92

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Solution

The fourth proportional to 371,694.56, 557,344.20 and 147,045.92 is: 220,490.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,694.56 : 557,344.20 = 147,045.92 : x
  2. Step 2: Convert to fraction form
    371,694.56/557,344.20 = 147,045.92/x
  3. Step 3: Cross multiply
    371,694.56x = 557,344.20 × 147,045.92
  4. Step 4: Simplify right side
    371,694.56x = 81,955,190,645.66
  5. Step 5: Solve for x
    x = 81,955,190,645.66/371,694.56
  6. Step 6: Final answer
    x = 220,490.69

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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.