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Finding the Fourth Proportional to 236,722.80, 355,084.20 and 148,249.20

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Solution

The fourth proportional to 236,722.80, 355,084.20 and 148,249.20 is: 222,373.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,722.80 : 355,084.20 = 148,249.20 : x
  2. Step 2: Convert to fraction form
    236,722.80/355,084.20 = 148,249.20/x
  3. Step 3: Cross multiply
    236,722.80x = 355,084.20 × 148,249.20
  4. Step 4: Simplify right side
    236,722.80x = 52,640,948,582.64
  5. Step 5: Solve for x
    x = 52,640,948,582.64/236,722.80
  6. Step 6: Final answer
    x = 222,373.80

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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.