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Finding the Fourth Proportional to 191,963.97, 287,987.97 and 58,854.61

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Solution

The fourth proportional to 191,963.97, 287,987.97 and 58,854.61 is: 88,294.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,963.97 : 287,987.97 = 58,854.61 : x
  2. Step 2: Convert to fraction form
    191,963.97/287,987.97 = 58,854.61/x
  3. Step 3: Cross multiply
    191,963.97x = 287,987.97 × 58,854.61
  4. Step 4: Simplify right side
    191,963.97x = 16,949,420,239.73
  5. Step 5: Solve for x
    x = 16,949,420,239.73/191,963.97
  6. Step 6: Final answer
    x = 88,294.80

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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.