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Finding the Fourth Proportional to 159,086.70, 238,630.05 and 133,037.10

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Solution

The fourth proportional to 159,086.70, 238,630.05 and 133,037.10 is: 199,555.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,086.70 : 238,630.05 = 133,037.10 : x
  2. Step 2: Convert to fraction form
    159,086.70/238,630.05 = 133,037.10/x
  3. Step 3: Cross multiply
    159,086.70x = 238,630.05 × 133,037.10
  4. Step 4: Simplify right side
    159,086.70x = 31,746,649,824.86
  5. Step 5: Solve for x
    x = 31,746,649,824.86/159,086.70
  6. Step 6: Final answer
    x = 199,555.65

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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.