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Finding the Fourth Proportional to 121,583.52, 167,782.46 and 67,873.50

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Solution

The fourth proportional to 121,583.52, 167,782.46 and 67,873.50 is: 93,663.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,583.52 : 167,782.46 = 67,873.50 : x
  2. Step 2: Convert to fraction form
    121,583.52/167,782.46 = 67,873.50/x
  3. Step 3: Cross multiply
    121,583.52x = 167,782.46 × 67,873.50
  4. Step 4: Simplify right side
    121,583.52x = 11,387,982,459.44
  5. Step 5: Solve for x
    x = 11,387,982,459.44/121,583.52
  6. Step 6: Final answer
    x = 93,663.87

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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.