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Finding the Fourth Proportional to 61,671.11, 92,060.42 and 54,197.91

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Solution

The fourth proportional to 61,671.11, 92,060.42 and 54,197.91 is: 80,904.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,671.11 : 92,060.42 = 54,197.91 : x
  2. Step 2: Convert to fraction form
    61,671.11/92,060.42 = 54,197.91/x
  3. Step 3: Cross multiply
    61,671.11x = 92,060.42 × 54,197.91
  4. Step 4: Simplify right side
    61,671.11x = 4,989,482,086.73
  5. Step 5: Solve for x
    x = 4,989,482,086.73/61,671.11
  6. Step 6: Final answer
    x = 80,904.70

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.