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Finding the Fourth Proportional to 111,934.42, 167,082.66 and 98,648.80

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Solution

The fourth proportional to 111,934.42, 167,082.66 and 98,648.80 is: 147,251.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,934.42 : 167,082.66 = 98,648.80 : x
  2. Step 2: Convert to fraction form
    111,934.42/167,082.66 = 98,648.80/x
  3. Step 3: Cross multiply
    111,934.42x = 167,082.66 × 98,648.80
  4. Step 4: Simplify right side
    111,934.42x = 16,482,503,074.39
  5. Step 5: Solve for x
    x = 16,482,503,074.39/111,934.42
  6. Step 6: Final answer
    x = 147,251.43

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.