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Finding the Fourth Proportional to 61,175.91, 91,726.43 and 55,954.90

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Solution

The fourth proportional to 61,175.91, 91,726.43 and 55,954.90 is: 83,898.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,175.91 : 91,726.43 = 55,954.90 : x
  2. Step 2: Convert to fraction form
    61,175.91/91,726.43 = 55,954.90/x
  3. Step 3: Cross multiply
    61,175.91x = 91,726.43 × 55,954.90
  4. Step 4: Simplify right side
    61,175.91x = 5,132,543,052.89
  5. Step 5: Solve for x
    x = 5,132,543,052.89/61,175.91
  6. Step 6: Final answer
    x = 83,898.11

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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.