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Finding the Fourth Proportional to 158,422.64, 218,691.72 and 94,748.12

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Solution

The fourth proportional to 158,422.64, 218,691.72 and 94,748.12 is: 130,793.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,422.64 : 218,691.72 = 94,748.12 : x
  2. Step 2: Convert to fraction form
    158,422.64/218,691.72 = 94,748.12/x
  3. Step 3: Cross multiply
    158,422.64x = 218,691.72 × 94,748.12
  4. Step 4: Simplify right side
    158,422.64x = 20,720,629,329.57
  5. Step 5: Solve for x
    x = 20,720,629,329.57/158,422.64
  6. Step 6: Final answer
    x = 130,793.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.