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Finding the Fourth Proportional to 111,714.80, 167,519.54 and 40,587.30

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Solution

The fourth proportional to 111,714.80, 167,519.54 and 40,587.30 is: 60,861.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,714.80 : 167,519.54 = 40,587.30 : x
  2. Step 2: Convert to fraction form
    111,714.80/167,519.54 = 40,587.30/x
  3. Step 3: Cross multiply
    111,714.80x = 167,519.54 × 40,587.30
  4. Step 4: Simplify right side
    111,714.80x = 6,799,165,825.84
  5. Step 5: Solve for x
    x = 6,799,165,825.84/111,714.80
  6. Step 6: Final answer
    x = 60,861.82

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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.