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Finding the Fourth Proportional to 127,863.20, 191,794.80 and 56,769.14

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Solution

The fourth proportional to 127,863.20, 191,794.80 and 56,769.14 is: 85,153.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,863.20 : 191,794.80 = 56,769.14 : x
  2. Step 2: Convert to fraction form
    127,863.20/191,794.80 = 56,769.14/x
  3. Step 3: Cross multiply
    127,863.20x = 191,794.80 × 56,769.14
  4. Step 4: Simplify right side
    127,863.20x = 10,888,025,852.47
  5. Step 5: Solve for x
    x = 10,888,025,852.47/127,863.20
  6. Step 6: Final answer
    x = 85,153.71

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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.