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Finding the Fourth Proportional to 99,171.92, 148,759.10 and 29,052.66

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Solution

The fourth proportional to 99,171.92, 148,759.10 and 29,052.66 is: 43,579.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,171.92 : 148,759.10 = 29,052.66 : x
  2. Step 2: Convert to fraction form
    99,171.92/148,759.10 = 29,052.66/x
  3. Step 3: Cross multiply
    99,171.92x = 148,759.10 × 29,052.66
  4. Step 4: Simplify right side
    99,171.92x = 4,321,847,554.21
  5. Step 5: Solve for x
    x = 4,321,847,554.21/99,171.92
  6. Step 6: Final answer
    x = 43,579.35

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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.