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Finding the Fourth Proportional to 103,672.95, 155,502.03 and 40,481.24

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Solution

The fourth proportional to 103,672.95, 155,502.03 and 40,481.24 is: 60,718.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,672.95 : 155,502.03 = 40,481.24 : x
  2. Step 2: Convert to fraction form
    103,672.95/155,502.03 = 40,481.24/x
  3. Step 3: Cross multiply
    103,672.95x = 155,502.03 × 40,481.24
  4. Step 4: Simplify right side
    103,672.95x = 6,294,914,996.92
  5. Step 5: Solve for x
    x = 6,294,914,996.92/103,672.95
  6. Step 6: Final answer
    x = 60,718.97

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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.