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Finding the Fourth Proportional to 121,651.94, 167,882.19 and 67,937.00

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Solution

The fourth proportional to 121,651.94, 167,882.19 and 67,937.00 is: 93,754.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,651.94 : 167,882.19 = 67,937.00 : x
  2. Step 2: Convert to fraction form
    121,651.94/167,882.19 = 67,937.00/x
  3. Step 3: Cross multiply
    121,651.94x = 167,882.19 × 67,937.00
  4. Step 4: Simplify right side
    121,651.94x = 11,405,412,761.74
  5. Step 5: Solve for x
    x = 11,405,412,761.74/121,651.94
  6. Step 6: Final answer
    x = 93,754.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.