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Finding the Fourth Proportional to 58,060.60, 86,945.10 and 38,231.80

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Solution

The fourth proportional to 58,060.60, 86,945.10 and 38,231.80 is: 57,251.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,060.60 : 86,945.10 = 38,231.80 : x
  2. Step 2: Convert to fraction form
    58,060.60/86,945.10 = 38,231.80/x
  3. Step 3: Cross multiply
    58,060.60x = 86,945.10 × 38,231.80
  4. Step 4: Simplify right side
    58,060.60x = 3,324,067,674.18
  5. Step 5: Solve for x
    x = 3,324,067,674.18/58,060.60
  6. Step 6: Final answer
    x = 57,251.69

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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.