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Finding the Fourth Proportional to 120,717.67, 166,582.56 and 67,002.70

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Solution

The fourth proportional to 120,717.67, 166,582.56 and 67,002.70 is: 92,459.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,717.67 : 166,582.56 = 67,002.70 : x
  2. Step 2: Convert to fraction form
    120,717.67/166,582.56 = 67,002.70/x
  3. Step 3: Cross multiply
    120,717.67x = 166,582.56 × 67,002.70
  4. Step 4: Simplify right side
    120,717.67x = 11,161,481,292.91
  5. Step 5: Solve for x
    x = 11,161,481,292.91/120,717.67
  6. Step 6: Final answer
    x = 92,459.38

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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.