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Finding the Fourth Proportional to 111,612.16, 167,442.49 and 36,739.91

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Solution

The fourth proportional to 111,612.16, 167,442.49 and 36,739.91 is: 55,117.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,612.16 : 167,442.49 = 36,739.91 : x
  2. Step 2: Convert to fraction form
    111,612.16/167,442.49 = 36,739.91/x
  3. Step 3: Cross multiply
    111,612.16x = 167,442.49 × 36,739.91
  4. Step 4: Simplify right side
    111,612.16x = 6,151,822,012.78
  5. Step 5: Solve for x
    x = 6,151,822,012.78/111,612.16
  6. Step 6: Final answer
    x = 55,117.85

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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.