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Finding the Fourth Proportional to 99,687.98, 149,531.97 and 29,566.69

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Solution

The fourth proportional to 99,687.98, 149,531.97 and 29,566.69 is: 44,350.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,687.98 : 149,531.97 = 29,566.69 : x
  2. Step 2: Convert to fraction form
    99,687.98/149,531.97 = 29,566.69/x
  3. Step 3: Cross multiply
    99,687.98x = 149,531.97 × 29,566.69
  4. Step 4: Simplify right side
    99,687.98x = 4,421,165,139.12
  5. Step 5: Solve for x
    x = 4,421,165,139.12/99,687.98
  6. Step 6: Final answer
    x = 44,350.03

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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.