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Finding the Fourth Proportional to 95,687.63, 132,043.31 and 55,398.53

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Solution

The fourth proportional to 95,687.63, 132,043.31 and 55,398.53 is: 76,446.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,687.63 : 132,043.31 = 55,398.53 : x
  2. Step 2: Convert to fraction form
    95,687.63/132,043.31 = 55,398.53/x
  3. Step 3: Cross multiply
    95,687.63x = 132,043.31 × 55,398.53
  4. Step 4: Simplify right side
    95,687.63x = 7,315,005,842.81
  5. Step 5: Solve for x
    x = 7,315,005,842.81/95,687.63
  6. Step 6: Final answer
    x = 76,446.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.