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Finding the Fourth Proportional to 348,219.66, 522,375.97 and 137,808.39

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Solution

The fourth proportional to 348,219.66, 522,375.97 and 137,808.39 is: 206,730.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,219.66 : 522,375.97 = 137,808.39 : x
  2. Step 2: Convert to fraction form
    348,219.66/522,375.97 = 137,808.39/x
  3. Step 3: Cross multiply
    348,219.66x = 522,375.97 × 137,808.39
  4. Step 4: Simplify right side
    348,219.66x = 71,987,791,400.39
  5. Step 5: Solve for x
    x = 71,987,791,400.39/348,219.66
  6. Step 6: Final answer
    x = 206,730.98

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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.