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Finding the Fourth Proportional to 96,687.90, 144,916.65 and 40,527.90

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Solution

The fourth proportional to 96,687.90, 144,916.65 and 40,527.90 is: 60,743.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,687.90 : 144,916.65 = 40,527.90 : x
  2. Step 2: Convert to fraction form
    96,687.90/144,916.65 = 40,527.90/x
  3. Step 3: Cross multiply
    96,687.90x = 144,916.65 × 40,527.90
  4. Step 4: Simplify right side
    96,687.90x = 5,873,167,499.54
  5. Step 5: Solve for x
    x = 5,873,167,499.54/96,687.90
  6. Step 6: Final answer
    x = 60,743.56

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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.