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Finding the Fourth Proportional to 79,967.93, 119,700.38 and 54,861.17

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Solution

The fourth proportional to 79,967.93, 119,700.38 and 54,861.17 is: 82,119.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,967.93 : 119,700.38 = 54,861.17 : x
  2. Step 2: Convert to fraction form
    79,967.93/119,700.38 = 54,861.17/x
  3. Step 3: Cross multiply
    79,967.93x = 119,700.38 × 54,861.17
  4. Step 4: Simplify right side
    79,967.93x = 6,566,902,023.44
  5. Step 5: Solve for x
    x = 6,566,902,023.44/79,967.93
  6. Step 6: Final answer
    x = 82,119.20

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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.