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Finding the Fourth Proportional to 208,797.87, 288,141.84 and 113,304.54

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Solution

The fourth proportional to 208,797.87, 288,141.84 and 113,304.54 is: 156,360.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,797.87 : 288,141.84 = 113,304.54 : x
  2. Step 2: Convert to fraction form
    208,797.87/288,141.84 = 113,304.54/x
  3. Step 3: Cross multiply
    208,797.87x = 288,141.84 × 113,304.54
  4. Step 4: Simplify right side
    208,797.87x = 32,647,778,635.95
  5. Step 5: Solve for x
    x = 32,647,778,635.95/208,797.87
  6. Step 6: Final answer
    x = 156,360.69

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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.