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Finding the Fourth Proportional to 104,872.97, 157,248.69 and 71,633.21

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Solution

The fourth proportional to 104,872.97, 157,248.69 and 71,633.21 is: 107,408.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,872.97 : 157,248.69 = 71,633.21 : x
  2. Step 2: Convert to fraction form
    104,872.97/157,248.69 = 71,633.21/x
  3. Step 3: Cross multiply
    104,872.97x = 157,248.69 × 71,633.21
  4. Step 4: Simplify right side
    104,872.97x = 11,264,227,646.75
  5. Step 5: Solve for x
    x = 11,264,227,646.75/104,872.97
  6. Step 6: Final answer
    x = 107,408.31

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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.