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Finding the Fourth Proportional to 92,170.60, 138,034.42 and 52,607.77

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Solution

The fourth proportional to 92,170.60, 138,034.42 and 52,607.77 is: 78,785.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,170.60 : 138,034.42 = 52,607.77 : x
  2. Step 2: Convert to fraction form
    92,170.60/138,034.42 = 52,607.77/x
  3. Step 3: Cross multiply
    92,170.60x = 138,034.42 × 52,607.77
  4. Step 4: Simplify right side
    92,170.60x = 7,261,683,019.44
  5. Step 5: Solve for x
    x = 7,261,683,019.44/92,170.60
  6. Step 6: Final answer
    x = 78,785.24

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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.