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Finding the Fourth Proportional to 158,158.40, 237,160.80 and 87,963.20

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Solution

The fourth proportional to 158,158.40, 237,160.80 and 87,963.20 is: 131,902.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,158.40 : 237,160.80 = 87,963.20 : x
  2. Step 2: Convert to fraction form
    158,158.40/237,160.80 = 87,963.20/x
  3. Step 3: Cross multiply
    158,158.40x = 237,160.80 × 87,963.20
  4. Step 4: Simplify right side
    158,158.40x = 20,861,422,882.56
  5. Step 5: Solve for x
    x = 20,861,422,882.56/158,158.40
  6. Step 6: Final answer
    x = 131,902.09

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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.