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Finding the Fourth Proportional to 158,279.60, 238,002.60 and 132,618.80

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Solution

The fourth proportional to 158,279.60, 238,002.60 and 132,618.80 is: 199,416.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,279.60 : 238,002.60 = 132,618.80 : x
  2. Step 2: Convert to fraction form
    158,279.60/238,002.60 = 132,618.80/x
  3. Step 3: Cross multiply
    158,279.60x = 238,002.60 × 132,618.80
  4. Step 4: Simplify right side
    158,279.60x = 31,563,619,208.88
  5. Step 5: Solve for x
    x = 31,563,619,208.88/158,279.60
  6. Step 6: Final answer
    x = 199,416.85

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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.