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Finding the Fourth Proportional to 221,796.40, 332,743.20 and 88,643.20

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Solution

The fourth proportional to 221,796.40, 332,743.20 and 88,643.20 is: 132,984.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,796.40 : 332,743.20 = 88,643.20 : x
  2. Step 2: Convert to fraction form
    221,796.40/332,743.20 = 88,643.20/x
  3. Step 3: Cross multiply
    221,796.40x = 332,743.20 × 88,643.20
  4. Step 4: Simplify right side
    221,796.40x = 29,495,422,026.24
  5. Step 5: Solve for x
    x = 29,495,422,026.24/221,796.40
  6. Step 6: Final answer
    x = 132,984.22

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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.