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Finding the Fourth Proportional to 98,714.56, 148,392.96 and 79,206.88

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Solution

The fourth proportional to 98,714.56, 148,392.96 and 79,206.88 is: 119,067.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,714.56 : 148,392.96 = 79,206.88 : x
  2. Step 2: Convert to fraction form
    98,714.56/148,392.96 = 79,206.88/x
  3. Step 3: Cross multiply
    98,714.56x = 148,392.96 × 79,206.88
  4. Step 4: Simplify right side
    98,714.56x = 11,753,743,375.56
  5. Step 5: Solve for x
    x = 11,753,743,375.56/98,714.56
  6. Step 6: Final answer
    x = 119,067.98

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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.