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Finding the Fourth Proportional to 111,919.16, 167,773.20 and 55,706.13

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Solution

The fourth proportional to 111,919.16, 167,773.20 and 55,706.13 is: 83,506.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,919.16 : 167,773.20 = 55,706.13 : x
  2. Step 2: Convert to fraction form
    111,919.16/167,773.20 = 55,706.13/x
  3. Step 3: Cross multiply
    111,919.16x = 167,773.20 × 55,706.13
  4. Step 4: Simplify right side
    111,919.16x = 9,345,995,689.72
  5. Step 5: Solve for x
    x = 9,345,995,689.72/111,919.16
  6. Step 6: Final answer
    x = 83,506.66

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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.