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Finding the Fourth Proportional to 111,456.86, 167,197.97 and 40,412.95

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Solution

The fourth proportional to 111,456.86, 167,197.97 and 40,412.95 is: 60,624.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,456.86 : 167,197.97 = 40,412.95 : x
  2. Step 2: Convert to fraction form
    111,456.86/167,197.97 = 40,412.95/x
  3. Step 3: Cross multiply
    111,456.86x = 167,197.97 × 40,412.95
  4. Step 4: Simplify right side
    111,456.86x = 6,756,963,201.71
  5. Step 5: Solve for x
    x = 6,756,963,201.71/111,456.86
  6. Step 6: Final answer
    x = 60,624.02

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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.