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Finding the Fourth Proportional to 127,856.70, 191,785.05 and 44,759.10

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Solution

The fourth proportional to 127,856.70, 191,785.05 and 44,759.10 is: 67,138.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,856.70 : 191,785.05 = 44,759.10 : x
  2. Step 2: Convert to fraction form
    127,856.70/191,785.05 = 44,759.10/x
  3. Step 3: Cross multiply
    127,856.70x = 191,785.05 × 44,759.10
  4. Step 4: Simplify right side
    127,856.70x = 8,584,126,231.46
  5. Step 5: Solve for x
    x = 8,584,126,231.46/127,856.70
  6. Step 6: Final answer
    x = 67,138.65

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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.