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Finding the Fourth Proportional to 121,064.76, 167,052.92 and 67,342.86

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Solution

The fourth proportional to 121,064.76, 167,052.92 and 67,342.86 is: 92,923.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,064.76 : 167,052.92 = 67,342.86 : x
  2. Step 2: Convert to fraction form
    121,064.76/167,052.92 = 67,342.86/x
  3. Step 3: Cross multiply
    121,064.76x = 167,052.92 × 67,342.86
  4. Step 4: Simplify right side
    121,064.76x = 11,249,821,067.44
  5. Step 5: Solve for x
    x = 11,249,821,067.44/121,064.76
  6. Step 6: Final answer
    x = 92,923.99

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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.