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Finding the Fourth Proportional to 220,043.97, 330,108.39 and 93,681.90

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Solution

The fourth proportional to 220,043.97, 330,108.39 and 93,681.90 is: 140,540.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,043.97 : 330,108.39 = 93,681.90 : x
  2. Step 2: Convert to fraction form
    220,043.97/330,108.39 = 93,681.90/x
  3. Step 3: Cross multiply
    220,043.97x = 330,108.39 × 93,681.90
  4. Step 4: Simplify right side
    220,043.97x = 30,925,181,181.14
  5. Step 5: Solve for x
    x = 30,925,181,181.14/220,043.97
  6. Step 6: Final answer
    x = 140,540.92

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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.