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Finding the Fourth Proportional to 254,825.80, 382,238.70 and 242,578.60

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Solution

The fourth proportional to 254,825.80, 382,238.70 and 242,578.60 is: 363,867.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,825.80 : 382,238.70 = 242,578.60 : x
  2. Step 2: Convert to fraction form
    254,825.80/382,238.70 = 242,578.60/x
  3. Step 3: Cross multiply
    254,825.80x = 382,238.70 × 242,578.60
  4. Step 4: Simplify right side
    254,825.80x = 92,722,928,711.82
  5. Step 5: Solve for x
    x = 92,722,928,711.82/254,825.80
  6. Step 6: Final answer
    x = 363,867.90

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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.