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Finding the Fourth Proportional to 127,393.74, 191,069.28 and 38,626.02

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Solution

The fourth proportional to 127,393.74, 191,069.28 and 38,626.02 is: 57,932.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,393.74 : 191,069.28 = 38,626.02 : x
  2. Step 2: Convert to fraction form
    127,393.74/191,069.28 = 38,626.02/x
  3. Step 3: Cross multiply
    127,393.74x = 191,069.28 × 38,626.02
  4. Step 4: Simplify right side
    127,393.74x = 7,380,245,830.67
  5. Step 5: Solve for x
    x = 7,380,245,830.67/127,393.74
  6. Step 6: Final answer
    x = 57,932.56

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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.