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Finding the Fourth Proportional to 236,480.70, 354,721.05 and 147,907.20

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Solution

The fourth proportional to 236,480.70, 354,721.05 and 147,907.20 is: 221,860.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,480.70 : 354,721.05 = 147,907.20 : x
  2. Step 2: Convert to fraction form
    236,480.70/354,721.05 = 147,907.20/x
  3. Step 3: Cross multiply
    236,480.70x = 354,721.05 × 147,907.20
  4. Step 4: Simplify right side
    236,480.70x = 52,465,797,286.56
  5. Step 5: Solve for x
    x = 52,465,797,286.56/236,480.70
  6. Step 6: Final answer
    x = 221,860.80

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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.