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Finding the Fourth Proportional to 111,934.96, 167,902.80 and 45,376.40

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Solution

The fourth proportional to 111,934.96, 167,902.80 and 45,376.40 is: 68,064.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,934.96 : 167,902.80 = 45,376.40 : x
  2. Step 2: Convert to fraction form
    111,934.96/167,902.80 = 45,376.40/x
  3. Step 3: Cross multiply
    111,934.96x = 167,902.80 × 45,376.40
  4. Step 4: Simplify right side
    111,934.96x = 7,618,824,613.92
  5. Step 5: Solve for x
    x = 7,618,824,613.92/111,934.96
  6. Step 6: Final answer
    x = 68,064.75

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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.