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Finding the Fourth Proportional to 92,003.60, 137,908.20 and 52,475.60

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Solution

The fourth proportional to 92,003.60, 137,908.20 and 52,475.60 is: 78,657.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,003.60 : 137,908.20 = 52,475.60 : x
  2. Step 2: Convert to fraction form
    92,003.60/137,908.20 = 52,475.60/x
  3. Step 3: Cross multiply
    92,003.60x = 137,908.20 × 52,475.60
  4. Step 4: Simplify right side
    92,003.60x = 7,236,815,539.92
  5. Step 5: Solve for x
    x = 7,236,815,539.92/92,003.60
  6. Step 6: Final answer
    x = 78,657.96

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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.