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Finding the Fourth Proportional to 371,695.56, 557,345.70 and 147,046.92

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Solution

The fourth proportional to 371,695.56, 557,345.70 and 147,046.92 is: 220,492.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,695.56 : 557,345.70 = 147,046.92 : x
  2. Step 2: Convert to fraction form
    371,695.56/557,345.70 = 147,046.92/x
  3. Step 3: Cross multiply
    371,695.56x = 557,345.70 × 147,046.92
  4. Step 4: Simplify right side
    371,695.56x = 81,955,968,560.24
  5. Step 5: Solve for x
    x = 81,955,968,560.24/371,695.56
  6. Step 6: Final answer
    x = 220,492.19

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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.