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Finding the Fourth Proportional to 158,470.50, 218,650.14 and 93,954.87

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Solution

The fourth proportional to 158,470.50, 218,650.14 and 93,954.87 is: 129,634.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,470.50 : 218,650.14 = 93,954.87 : x
  2. Step 2: Convert to fraction form
    158,470.50/218,650.14 = 93,954.87/x
  3. Step 3: Cross multiply
    158,470.50x = 218,650.14 × 93,954.87
  4. Step 4: Simplify right side
    158,470.50x = 20,543,245,479.18
  5. Step 5: Solve for x
    x = 20,543,245,479.18/158,470.50
  6. Step 6: Final answer
    x = 129,634.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.