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Finding the Fourth Proportional to 241,480.80, 362,221.20 and 215,215.20

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Solution

The fourth proportional to 241,480.80, 362,221.20 and 215,215.20 is: 322,822.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    241,480.80 : 362,221.20 = 215,215.20 : x
  2. Step 2: Convert to fraction form
    241,480.80/362,221.20 = 215,215.20/x
  3. Step 3: Cross multiply
    241,480.80x = 362,221.20 × 215,215.20
  4. Step 4: Simplify right side
    241,480.80x = 77,955,508,002.24
  5. Step 5: Solve for x
    x = 77,955,508,002.24/241,480.80
  6. Step 6: Final answer
    x = 322,822.80

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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.