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Finding the Fourth Proportional to 142,367.75, 213,470.75 and 58,029.13

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Solution

The fourth proportional to 142,367.75, 213,470.75 and 58,029.13 is: 87,010.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,367.75 : 213,470.75 = 58,029.13 : x
  2. Step 2: Convert to fraction form
    142,367.75/213,470.75 = 58,029.13/x
  3. Step 3: Cross multiply
    142,367.75x = 213,470.75 × 58,029.13
  4. Step 4: Simplify right side
    142,367.75x = 12,387,521,902.95
  5. Step 5: Solve for x
    x = 12,387,521,902.95/142,367.75
  6. Step 6: Final answer
    x = 87,010.73

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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.