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Finding the Fourth Proportional to 167,758.92, 251,275.50 and 78,879.24

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Solution

The fourth proportional to 167,758.92, 251,275.50 and 78,879.24 is: 118,148.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,758.92 : 251,275.50 = 78,879.24 : x
  2. Step 2: Convert to fraction form
    167,758.92/251,275.50 = 78,879.24/x
  3. Step 3: Cross multiply
    167,758.92x = 251,275.50 × 78,879.24
  4. Step 4: Simplify right side
    167,758.92x = 19,820,420,470.62
  5. Step 5: Solve for x
    x = 19,820,420,470.62/167,758.92
  6. Step 6: Final answer
    x = 118,148.24

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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.