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Finding the Fourth Proportional to 99,559.98, 149,340.51 and 29,439.90

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Solution

The fourth proportional to 99,559.98, 149,340.51 and 29,439.90 is: 44,160.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,559.98 : 149,340.51 = 29,439.90 : x
  2. Step 2: Convert to fraction form
    99,559.98/149,340.51 = 29,439.90/x
  3. Step 3: Cross multiply
    99,559.98x = 149,340.51 × 29,439.90
  4. Step 4: Simplify right side
    99,559.98x = 4,396,569,680.35
  5. Step 5: Solve for x
    x = 4,396,569,680.35/99,559.98
  6. Step 6: Final answer
    x = 44,160.01

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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.