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Finding the Fourth Proportional to 157,439.56, 236,211.18 and 63,920.20

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Solution

The fourth proportional to 157,439.56, 236,211.18 and 63,920.20 is: 95,901.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,439.56 : 236,211.18 = 63,920.20 : x
  2. Step 2: Convert to fraction form
    157,439.56/236,211.18 = 63,920.20/x
  3. Step 3: Cross multiply
    157,439.56x = 236,211.18 × 63,920.20
  4. Step 4: Simplify right side
    157,439.56x = 15,098,665,867.84
  5. Step 5: Solve for x
    x = 15,098,665,867.84/157,439.56
  6. Step 6: Final answer
    x = 95,901.35

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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.