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Finding the Fourth Proportional to 100,596.12, 150,917.52 and 29,515.90

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Solution

The fourth proportional to 100,596.12, 150,917.52 and 29,515.90 is: 44,280.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,596.12 : 150,917.52 = 29,515.90 : x
  2. Step 2: Convert to fraction form
    100,596.12/150,917.52 = 29,515.90/x
  3. Step 3: Cross multiply
    100,596.12x = 150,917.52 × 29,515.90
  4. Step 4: Simplify right side
    100,596.12x = 4,454,466,428.57
  5. Step 5: Solve for x
    x = 4,454,466,428.57/100,596.12
  6. Step 6: Final answer
    x = 44,280.70

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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.