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Finding the Fourth Proportional to 371,730.73, 557,781.32 and 147,252.95

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Solution

The fourth proportional to 371,730.73, 557,781.32 and 147,252.95 is: 220,952.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,730.73 : 557,781.32 = 147,252.95 : x
  2. Step 2: Convert to fraction form
    371,730.73/557,781.32 = 147,252.95/x
  3. Step 3: Cross multiply
    371,730.73x = 557,781.32 × 147,252.95
  4. Step 4: Simplify right side
    371,730.73x = 82,134,944,824.89
  5. Step 5: Solve for x
    x = 82,134,944,824.89/371,730.73
  6. Step 6: Final answer
    x = 220,952.80

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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.