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Finding the Fourth Proportional to 167,439.40, 251,166.42 and 83,239.90

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Solution

The fourth proportional to 167,439.40, 251,166.42 and 83,239.90 is: 124,863.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,439.40 : 251,166.42 = 83,239.90 : x
  2. Step 2: Convert to fraction form
    167,439.40/251,166.42 = 83,239.90/x
  3. Step 3: Cross multiply
    167,439.40x = 251,166.42 × 83,239.90
  4. Step 4: Simplify right side
    167,439.40x = 20,907,067,684.16
  5. Step 5: Solve for x
    x = 20,907,067,684.16/167,439.40
  6. Step 6: Final answer
    x = 124,863.49

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1.5x scale

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.