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Finding the Fourth Proportional to 348,223.78, 522,401.22 and 248,135.68

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Solution

The fourth proportional to 348,223.78, 522,401.22 and 248,135.68 is: 372,250.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,223.78 : 522,401.22 = 248,135.68 : x
  2. Step 2: Convert to fraction form
    348,223.78/522,401.22 = 248,135.68/x
  3. Step 3: Cross multiply
    348,223.78x = 522,401.22 × 248,135.68
  4. Step 4: Simplify right side
    348,223.78x = 129,626,379,965.86
  5. Step 5: Solve for x
    x = 129,626,379,965.86/348,223.78
  6. Step 6: Final answer
    x = 372,250.23

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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.