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Finding the Fourth Proportional to 167,900.42, 251,790.13 and 55,559.90

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Solution

The fourth proportional to 167,900.42, 251,790.13 and 55,559.90 is: 83,319.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,900.42 : 251,790.13 = 55,559.90 : x
  2. Step 2: Convert to fraction form
    167,900.42/251,790.13 = 55,559.90/x
  3. Step 3: Cross multiply
    167,900.42x = 251,790.13 × 55,559.90
  4. Step 4: Simplify right side
    167,900.42x = 13,989,434,443.79
  5. Step 5: Solve for x
    x = 13,989,434,443.79/167,900.42
  6. Step 6: Final answer
    x = 83,319.83

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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.