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Finding the Fourth Proportional to 188,470.80, 282,706.20 and 63,811.80

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Solution

The fourth proportional to 188,470.80, 282,706.20 and 63,811.80 is: 95,717.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,470.80 : 282,706.20 = 63,811.80 : x
  2. Step 2: Convert to fraction form
    188,470.80/282,706.20 = 63,811.80/x
  3. Step 3: Cross multiply
    188,470.80x = 282,706.20 × 63,811.80
  4. Step 4: Simplify right side
    188,470.80x = 18,039,991,493.16
  5. Step 5: Solve for x
    x = 18,039,991,493.16/188,470.80
  6. Step 6: Final answer
    x = 95,717.70

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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.