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Finding the Fourth Proportional to 61,691.11, 92,573.52 and 56,671.95

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Solution

The fourth proportional to 61,691.11, 92,573.52 and 56,671.95 is: 85,041.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,691.11 : 92,573.52 = 56,671.95 : x
  2. Step 2: Convert to fraction form
    61,691.11/92,573.52 = 56,671.95/x
  3. Step 3: Cross multiply
    61,691.11x = 92,573.52 × 56,671.95
  4. Step 4: Simplify right side
    61,691.11x = 5,246,321,896.76
  5. Step 5: Solve for x
    x = 5,246,321,896.76/61,691.11
  6. Step 6: Final answer
    x = 85,041.78

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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.