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Finding the Fourth Proportional to 260,793.90, 391,247.55 and 148,527.90

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Solution

The fourth proportional to 260,793.90, 391,247.55 and 148,527.90 is: 222,824.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,793.90 : 391,247.55 = 148,527.90 : x
  2. Step 2: Convert to fraction form
    260,793.90/391,247.55 = 148,527.90/x
  3. Step 3: Cross multiply
    260,793.90x = 391,247.55 × 148,527.90
  4. Step 4: Simplify right side
    260,793.90x = 58,111,176,981.65
  5. Step 5: Solve for x
    x = 58,111,176,981.65/260,793.90
  6. Step 6: Final answer
    x = 222,824.14

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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.