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Finding the Fourth Proportional to 121,046.01, 167,041.04 and 67,329.87

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Solution

The fourth proportional to 121,046.01, 167,041.04 and 67,329.87 is: 92,913.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,046.01 : 167,041.04 = 67,329.87 : x
  2. Step 2: Convert to fraction form
    121,046.01/167,041.04 = 67,329.87/x
  3. Step 3: Cross multiply
    121,046.01x = 167,041.04 × 67,329.87
  4. Step 4: Simplify right side
    121,046.01x = 11,246,851,171.22
  5. Step 5: Solve for x
    x = 11,246,851,171.22/121,046.01
  6. Step 6: Final answer
    x = 92,913.85

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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.