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Finding the Fourth Proportional to 111,753.69, 154,220.28 and 60,766.38

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Solution

The fourth proportional to 111,753.69, 154,220.28 and 60,766.38 is: 83,857.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,753.69 : 154,220.28 = 60,766.38 : x
  2. Step 2: Convert to fraction form
    111,753.69/154,220.28 = 60,766.38/x
  3. Step 3: Cross multiply
    111,753.69x = 154,220.28 × 60,766.38
  4. Step 4: Simplify right side
    111,753.69x = 9,371,408,138.19
  5. Step 5: Solve for x
    x = 9,371,408,138.19/111,753.69
  6. Step 6: Final answer
    x = 83,857.71

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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.