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Finding the Fourth Proportional to 56,769.60, 85,251.60 and 37,135.20

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Solution

The fourth proportional to 56,769.60, 85,251.60 and 37,135.20 is: 55,766.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,769.60 : 85,251.60 = 37,135.20 : x
  2. Step 2: Convert to fraction form
    56,769.60/85,251.60 = 37,135.20/x
  3. Step 3: Cross multiply
    56,769.60x = 85,251.60 × 37,135.20
  4. Step 4: Simplify right side
    56,769.60x = 3,165,835,216.32
  5. Step 5: Solve for x
    x = 3,165,835,216.32/56,769.60
  6. Step 6: Final answer
    x = 55,766.38

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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.