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Finding the Fourth Proportional to 111,612.91, 167,443.61 and 36,740.66

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Solution

The fourth proportional to 111,612.91, 167,443.61 and 36,740.66 is: 55,118.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,612.91 : 167,443.61 = 36,740.66 : x
  2. Step 2: Convert to fraction form
    111,612.91/167,443.61 = 36,740.66/x
  3. Step 3: Cross multiply
    111,612.91x = 167,443.61 × 36,740.66
  4. Step 4: Simplify right side
    111,612.91x = 6,151,988,744.18
  5. Step 5: Solve for x
    x = 6,151,988,744.18/111,612.91
  6. Step 6: Final answer
    x = 55,118.97

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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.