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Finding the Fourth Proportional to 107,736, 148,687.20 and 63,061.44

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Solution

The fourth proportional to 107,736, 148,687.20 and 63,061.44 is: 87,031.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,736 : 148,687.20 = 63,061.44 : x
  2. Step 2: Convert to fraction form
    107,736/148,687.20 = 63,061.44/x
  3. Step 3: Cross multiply
    107,736x = 148,687.20 × 63,061.44
  4. Step 4: Simplify right side
    107,736x = 9,376,428,941.57
  5. Step 5: Solve for x
    x = 9,376,428,941.57/107,736
  6. Step 6: Final answer
    x = 87,031.53

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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.