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Finding the Fourth Proportional to 61,079.88, 91,616.31 and 36,277.47

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Solution

The fourth proportional to 61,079.88, 91,616.31 and 36,277.47 is: 54,414.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,079.88 : 91,616.31 = 36,277.47 : x
  2. Step 2: Convert to fraction form
    61,079.88/91,616.31 = 36,277.47/x
  3. Step 3: Cross multiply
    61,079.88x = 91,616.31 × 36,277.47
  4. Step 4: Simplify right side
    61,079.88x = 3,323,607,937.54
  5. Step 5: Solve for x
    x = 3,323,607,937.54/61,079.88
  6. Step 6: Final answer
    x = 54,414.12

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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.