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Finding the Fourth Proportional to 111,913.60, 167,812.80 and 41,756.80

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Solution

The fourth proportional to 111,913.60, 167,812.80 and 41,756.80 is: 62,613.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,913.60 : 167,812.80 = 41,756.80 : x
  2. Step 2: Convert to fraction form
    111,913.60/167,812.80 = 41,756.80/x
  3. Step 3: Cross multiply
    111,913.60x = 167,812.80 × 41,756.80
  4. Step 4: Simplify right side
    111,913.60x = 7,007,325,527.04
  5. Step 5: Solve for x
    x = 7,007,325,527.04/111,913.60
  6. Step 6: Final answer
    x = 62,613.71

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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.