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Finding the Fourth Proportional to 241,591.20, 361,695.60 and 148,279.20

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Solution

The fourth proportional to 241,591.20, 361,695.60 and 148,279.20 is: 221,994.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    241,591.20 : 361,695.60 = 148,279.20 : x
  2. Step 2: Convert to fraction form
    241,591.20/361,695.60 = 148,279.20/x
  3. Step 3: Cross multiply
    241,591.20x = 361,695.60 × 148,279.20
  4. Step 4: Simplify right side
    241,591.20x = 53,631,934,211.52
  5. Step 5: Solve for x
    x = 53,631,934,211.52/241,591.20
  6. Step 6: Final answer
    x = 221,994.57

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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.