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Finding the Fourth Proportional to 121,063.86, 167,068.44 and 67,349.25

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Solution

The fourth proportional to 121,063.86, 167,068.44 and 67,349.25 is: 92,942.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,063.86 : 167,068.44 = 67,349.25 : x
  2. Step 2: Convert to fraction form
    121,063.86/167,068.44 = 67,349.25/x
  3. Step 3: Cross multiply
    121,063.86x = 167,068.44 × 67,349.25
  4. Step 4: Simplify right side
    121,063.86x = 11,251,934,132.67
  5. Step 5: Solve for x
    x = 11,251,934,132.67/121,063.86
  6. Step 6: Final answer
    x = 92,942.14

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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.