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Finding the Fourth Proportional to 209,248.66, 288,759.75 and 113,757.74

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Solution

The fourth proportional to 209,248.66, 288,759.75 and 113,757.74 is: 156,983.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,248.66 : 288,759.75 = 113,757.74 : x
  2. Step 2: Convert to fraction form
    209,248.66/288,759.75 = 113,757.74/x
  3. Step 3: Cross multiply
    209,248.66x = 288,759.75 × 113,757.74
  4. Step 4: Simplify right side
    209,248.66x = 32,848,656,562.97
  5. Step 5: Solve for x
    x = 32,848,656,562.97/209,248.66
  6. Step 6: Final answer
    x = 156,983.83

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1.5x scale

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.