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Finding the Fourth Proportional to 239,391.68, 359,096.60 and 89,616.20

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Solution

The fourth proportional to 239,391.68, 359,096.60 and 89,616.20 is: 134,427.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,391.68 : 359,096.60 = 89,616.20 : x
  2. Step 2: Convert to fraction form
    239,391.68/359,096.60 = 89,616.20/x
  3. Step 3: Cross multiply
    239,391.68x = 359,096.60 × 89,616.20
  4. Step 4: Simplify right side
    239,391.68x = 32,180,872,724.92
  5. Step 5: Solve for x
    x = 32,180,872,724.92/239,391.68
  6. Step 6: Final answer
    x = 134,427.70

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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.