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Finding the Fourth Proportional to 111,703.86, 167,617.35 and 49,372.74

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Solution

The fourth proportional to 111,703.86, 167,617.35 and 49,372.74 is: 74,086.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,703.86 : 167,617.35 = 49,372.74 : x
  2. Step 2: Convert to fraction form
    111,703.86/167,617.35 = 49,372.74/x
  3. Step 3: Cross multiply
    111,703.86x = 167,617.35 × 49,372.74
  4. Step 4: Simplify right side
    111,703.86x = 8,275,727,841.04
  5. Step 5: Solve for x
    x = 8,275,727,841.04/111,703.86
  6. Step 6: Final answer
    x = 74,086.32

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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.