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Finding the Fourth Proportional to 159,658.60, 239,487.90 and 146,756.20

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Solution

The fourth proportional to 159,658.60, 239,487.90 and 146,756.20 is: 220,134.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,658.60 : 239,487.90 = 146,756.20 : x
  2. Step 2: Convert to fraction form
    159,658.60/239,487.90 = 146,756.20/x
  3. Step 3: Cross multiply
    159,658.60x = 239,487.90 × 146,756.20
  4. Step 4: Simplify right side
    159,658.60x = 35,146,334,149.98
  5. Step 5: Solve for x
    x = 35,146,334,149.98/159,658.60
  6. Step 6: Final answer
    x = 220,134.30

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1.5x scale

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.