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Finding the Fourth Proportional to 272,422.58, 408,677.67 and 103,936.10

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Solution

The fourth proportional to 272,422.58, 408,677.67 and 103,936.10 is: 155,920.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,422.58 : 408,677.67 = 103,936.10 : x
  2. Step 2: Convert to fraction form
    272,422.58/408,677.67 = 103,936.10/x
  3. Step 3: Cross multiply
    272,422.58x = 408,677.67 × 103,936.10
  4. Step 4: Simplify right side
    272,422.58x = 42,476,361,133.50
  5. Step 5: Solve for x
    x = 42,476,361,133.50/272,422.58
  6. Step 6: Final answer
    x = 155,920.86

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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.