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Finding the Fourth Proportional to 218,766.80, 328,150.20 and 94,350.80

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Solution

The fourth proportional to 218,766.80, 328,150.20 and 94,350.80 is: 141,526.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,766.80 : 328,150.20 = 94,350.80 : x
  2. Step 2: Convert to fraction form
    218,766.80/328,150.20 = 94,350.80/x
  3. Step 3: Cross multiply
    218,766.80x = 328,150.20 × 94,350.80
  4. Step 4: Simplify right side
    218,766.80x = 30,961,233,890.16
  5. Step 5: Solve for x
    x = 30,961,233,890.16/218,766.80
  6. Step 6: Final answer
    x = 141,526.20

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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.