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Finding the Fourth Proportional to 218,806.56, 328,209.68 and 52,594.56

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Solution

The fourth proportional to 218,806.56, 328,209.68 and 52,594.56 is: 78,891.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,806.56 : 328,209.68 = 52,594.56 : x
  2. Step 2: Convert to fraction form
    218,806.56/328,209.68 = 52,594.56/x
  3. Step 3: Cross multiply
    218,806.56x = 328,209.68 × 52,594.56
  4. Step 4: Simplify right side
    218,806.56x = 17,262,043,707.34
  5. Step 5: Solve for x
    x = 17,262,043,707.34/218,806.56
  6. Step 6: Final answer
    x = 78,891.80

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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.