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Finding the Fourth Proportional to 121,216.44, 167,274.90 and 67,500.30

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Solution

The fourth proportional to 121,216.44, 167,274.90 and 67,500.30 is: 93,148.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,216.44 : 167,274.90 = 67,500.30 : x
  2. Step 2: Convert to fraction form
    121,216.44/167,274.90 = 67,500.30/x
  3. Step 3: Cross multiply
    121,216.44x = 167,274.90 × 67,500.30
  4. Step 4: Simplify right side
    121,216.44x = 11,291,105,932.47
  5. Step 5: Solve for x
    x = 11,291,105,932.47/121,216.44
  6. Step 6: Final answer
    x = 93,148.31

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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.