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Finding the Fourth Proportional to 145,231.70, 217,847.55 and 134,734.10

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Solution

The fourth proportional to 145,231.70, 217,847.55 and 134,734.10 is: 202,101.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,231.70 : 217,847.55 = 134,734.10 : x
  2. Step 2: Convert to fraction form
    145,231.70/217,847.55 = 134,734.10/x
  3. Step 3: Cross multiply
    145,231.70x = 217,847.55 × 134,734.10
  4. Step 4: Simplify right side
    145,231.70x = 29,351,493,586.46
  5. Step 5: Solve for x
    x = 29,351,493,586.46/145,231.70
  6. Step 6: Final answer
    x = 202,101.15

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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.