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Finding the Fourth Proportional to 111,590.13, 167,366.72 and 36,711.21

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Solution

The fourth proportional to 111,590.13, 167,366.72 and 36,711.21 is: 55,060.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,590.13 : 167,366.72 = 36,711.21 : x
  2. Step 2: Convert to fraction form
    111,590.13/167,366.72 = 36,711.21/x
  3. Step 3: Cross multiply
    111,590.13x = 167,366.72 × 36,711.21
  4. Step 4: Simplify right side
    111,590.13x = 6,144,234,621.38
  5. Step 5: Solve for x
    x = 6,144,234,621.38/111,590.13
  6. Step 6: Final answer
    x = 55,060.74

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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.