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Finding the Fourth Proportional to 68,279.85, 102,424.39 and 32,748.96

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Solution

The fourth proportional to 68,279.85, 102,424.39 and 32,748.96 is: 49,125.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,279.85 : 102,424.39 = 32,748.96 : x
  2. Step 2: Convert to fraction form
    68,279.85/102,424.39 = 32,748.96/x
  3. Step 3: Cross multiply
    68,279.85x = 102,424.39 × 32,748.96
  4. Step 4: Simplify right side
    68,279.85x = 3,354,291,931.16
  5. Step 5: Solve for x
    x = 3,354,291,931.16/68,279.85
  6. Step 6: Final answer
    x = 49,125.65

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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.