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Finding the Fourth Proportional to 167,909.67, 251,864.55 and 55,559.70

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Solution

The fourth proportional to 167,909.67, 251,864.55 and 55,559.70 is: 83,339.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,909.67 : 251,864.55 = 55,559.70 : x
  2. Step 2: Convert to fraction form
    167,909.67/251,864.55 = 55,559.70/x
  3. Step 3: Cross multiply
    167,909.67x = 251,864.55 × 55,559.70
  4. Step 4: Simplify right side
    167,909.67x = 13,993,518,838.64
  5. Step 5: Solve for x
    x = 13,993,518,838.64/167,909.67
  6. Step 6: Final answer
    x = 83,339.56

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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.