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Finding the Fourth Proportional to 113,906.80, 170,860.20 and 108,204.40

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Solution

The fourth proportional to 113,906.80, 170,860.20 and 108,204.40 is: 162,306.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,906.80 : 170,860.20 = 108,204.40 : x
  2. Step 2: Convert to fraction form
    113,906.80/170,860.20 = 108,204.40/x
  3. Step 3: Cross multiply
    113,906.80x = 170,860.20 × 108,204.40
  4. Step 4: Simplify right side
    113,906.80x = 18,487,825,424.88
  5. Step 5: Solve for x
    x = 18,487,825,424.88/113,906.80
  6. Step 6: Final answer
    x = 162,306.60

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1.5x scale

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.