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Finding the Fourth Proportional to 348,135.57, 522,229.95 and 148,456.80

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Solution

The fourth proportional to 348,135.57, 522,229.95 and 148,456.80 is: 222,696.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,135.57 : 522,229.95 = 148,456.80 : x
  2. Step 2: Convert to fraction form
    348,135.57/522,229.95 = 148,456.80/x
  3. Step 3: Cross multiply
    348,135.57x = 522,229.95 × 148,456.80
  4. Step 4: Simplify right side
    348,135.57x = 77,528,587,241.16
  5. Step 5: Solve for x
    x = 77,528,587,241.16/348,135.57
  6. Step 6: Final answer
    x = 222,696.54

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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.