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Finding the Fourth Proportional to 208,767.75, 288,098.48 and 113,274.44

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Solution

The fourth proportional to 208,767.75, 288,098.48 and 113,274.44 is: 156,318.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,767.75 : 288,098.48 = 113,274.44 : x
  2. Step 2: Convert to fraction form
    208,767.75/288,098.48 = 113,274.44/x
  3. Step 3: Cross multiply
    208,767.75x = 288,098.48 × 113,274.44
  4. Step 4: Simplify right side
    208,767.75x = 32,634,193,986.85
  5. Step 5: Solve for x
    x = 32,634,193,986.85/208,767.75
  6. Step 6: Final answer
    x = 156,318.18

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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.