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Finding the Fourth Proportional to 111,517, 167,332.86 and 74,102.92

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Solution

The fourth proportional to 111,517, 167,332.86 and 74,102.92 is: 111,192.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,517 : 167,332.86 = 74,102.92 : x
  2. Step 2: Convert to fraction form
    111,517/167,332.86 = 74,102.92/x
  3. Step 3: Cross multiply
    111,517x = 167,332.86 × 74,102.92
  4. Step 4: Simplify right side
    111,517x = 12,399,853,537.95
  5. Step 5: Solve for x
    x = 12,399,853,537.95/111,517
  6. Step 6: Final answer
    x = 111,192.50

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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.