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Finding the Fourth Proportional to 159,616.60, 239,424.90 and 146,138.20

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Solution

The fourth proportional to 159,616.60, 239,424.90 and 146,138.20 is: 219,207.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,616.60 : 239,424.90 = 146,138.20 : x
  2. Step 2: Convert to fraction form
    159,616.60/239,424.90 = 146,138.20/x
  3. Step 3: Cross multiply
    159,616.60x = 239,424.90 × 146,138.20
  4. Step 4: Simplify right side
    159,616.60x = 34,989,123,921.18
  5. Step 5: Solve for x
    x = 34,989,123,921.18/159,616.60
  6. Step 6: Final answer
    x = 219,207.30

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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.