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Finding the Fourth Proportional to 99,387.52, 149,086.08 and 29,267.52

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Solution

The fourth proportional to 99,387.52, 149,086.08 and 29,267.52 is: 43,902.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,387.52 : 149,086.08 = 29,267.52 : x
  2. Step 2: Convert to fraction form
    99,387.52/149,086.08 = 29,267.52/x
  3. Step 3: Cross multiply
    99,387.52x = 149,086.08 × 29,267.52
  4. Step 4: Simplify right side
    99,387.52x = 4,363,379,828.12
  5. Step 5: Solve for x
    x = 4,363,379,828.12/99,387.52
  6. Step 6: Final answer
    x = 43,902.69

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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.