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Finding the Fourth Proportional to 121,891.64, 182,841.10 and 33,147.02

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Solution

The fourth proportional to 121,891.64, 182,841.10 and 33,147.02 is: 49,721.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,891.64 : 182,841.10 = 33,147.02 : x
  2. Step 2: Convert to fraction form
    121,891.64/182,841.10 = 33,147.02/x
  3. Step 3: Cross multiply
    121,891.64x = 182,841.10 × 33,147.02
  4. Step 4: Simplify right side
    121,891.64x = 6,060,637,972.76
  5. Step 5: Solve for x
    x = 6,060,637,972.76/121,891.64
  6. Step 6: Final answer
    x = 49,721.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.