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Finding the Fourth Proportional to 121,568.94, 167,773.59 and 67,864.44

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Solution

The fourth proportional to 121,568.94, 167,773.59 and 67,864.44 is: 93,657.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,568.94 : 167,773.59 = 67,864.44 : x
  2. Step 2: Convert to fraction form
    121,568.94/167,773.59 = 67,864.44/x
  3. Step 3: Cross multiply
    121,568.94x = 167,773.59 × 67,864.44
  4. Step 4: Simplify right side
    121,568.94x = 11,385,860,732.14
  5. Step 5: Solve for x
    x = 11,385,860,732.14/121,568.94
  6. Step 6: Final answer
    x = 93,657.65

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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.