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Finding the Fourth Proportional to 147,321.20, 220,852.20 and 88,180.40

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Solution

The fourth proportional to 147,321.20, 220,852.20 and 88,180.40 is: 132,193.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,321.20 : 220,852.20 = 88,180.40 : x
  2. Step 2: Convert to fraction form
    147,321.20/220,852.20 = 88,180.40/x
  3. Step 3: Cross multiply
    147,321.20x = 220,852.20 × 88,180.40
  4. Step 4: Simplify right side
    147,321.20x = 19,474,835,336.88
  5. Step 5: Solve for x
    x = 19,474,835,336.88/147,321.20
  6. Step 6: Final answer
    x = 132,193.03

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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.