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Finding the Fourth Proportional to 221,745.20, 332,585.40 and 63,957.20

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Solution

The fourth proportional to 221,745.20, 332,585.40 and 63,957.20 is: 95,926.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,745.20 : 332,585.40 = 63,957.20 : x
  2. Step 2: Convert to fraction form
    221,745.20/332,585.40 = 63,957.20/x
  3. Step 3: Cross multiply
    221,745.20x = 332,585.40 × 63,957.20
  4. Step 4: Simplify right side
    221,745.20x = 21,271,230,944.88
  5. Step 5: Solve for x
    x = 21,271,230,944.88/221,745.20
  6. Step 6: Final answer
    x = 95,926.45

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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.