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Finding the Fourth Proportional to 221,747.60, 332,556.60 and 79,576.40

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Solution

The fourth proportional to 221,747.60, 332,556.60 and 79,576.40 is: 119,341.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,747.60 : 332,556.60 = 79,576.40 : x
  2. Step 2: Convert to fraction form
    221,747.60/332,556.60 = 79,576.40/x
  3. Step 3: Cross multiply
    221,747.60x = 332,556.60 × 79,576.40
  4. Step 4: Simplify right side
    221,747.60x = 26,463,657,024.24
  5. Step 5: Solve for x
    x = 26,463,657,024.24/221,747.60
  6. Step 6: Final answer
    x = 119,341.35

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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.