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Finding the Fourth Proportional to 107,702.59, 148,649.51 and 62,380.56

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Solution

The fourth proportional to 107,702.59, 148,649.51 and 62,380.56 is: 86,096.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,702.59 : 148,649.51 = 62,380.56 : x
  2. Step 2: Convert to fraction form
    107,702.59/148,649.51 = 62,380.56/x
  3. Step 3: Cross multiply
    107,702.59x = 148,649.51 × 62,380.56
  4. Step 4: Simplify right side
    107,702.59x = 9,272,839,677.53
  5. Step 5: Solve for x
    x = 9,272,839,677.53/107,702.59
  6. Step 6: Final answer
    x = 86,096.72

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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.