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Finding the Fourth Proportional to 115,240.50, 159,031.89 and 62,248.50

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Solution

The fourth proportional to 115,240.50, 159,031.89 and 62,248.50 is: 85,902.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,240.50 : 159,031.89 = 62,248.50 : x
  2. Step 2: Convert to fraction form
    115,240.50/159,031.89 = 62,248.50/x
  3. Step 3: Cross multiply
    115,240.50x = 159,031.89 × 62,248.50
  4. Step 4: Simplify right side
    115,240.50x = 9,899,496,604.67
  5. Step 5: Solve for x
    x = 9,899,496,604.67/115,240.50
  6. Step 6: Final answer
    x = 85,902.93

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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.