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Finding the Fourth Proportional to 240,906.20, 361,359.30 and 74,672.60

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Solution

The fourth proportional to 240,906.20, 361,359.30 and 74,672.60 is: 112,008.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,906.20 : 361,359.30 = 74,672.60 : x
  2. Step 2: Convert to fraction form
    240,906.20/361,359.30 = 74,672.60/x
  3. Step 3: Cross multiply
    240,906.20x = 361,359.30 × 74,672.60
  4. Step 4: Simplify right side
    240,906.20x = 26,983,638,465.18
  5. Step 5: Solve for x
    x = 26,983,638,465.18/240,906.20
  6. Step 6: Final answer
    x = 112,008.90

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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.