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Finding the Fourth Proportional to 221,335.20, 332,002.80 and 177,048.45

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Solution

The fourth proportional to 221,335.20, 332,002.80 and 177,048.45 is: 265,572.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,335.20 : 332,002.80 = 177,048.45 : x
  2. Step 2: Convert to fraction form
    221,335.20/332,002.80 = 177,048.45/x
  3. Step 3: Cross multiply
    221,335.20x = 332,002.80 × 177,048.45
  4. Step 4: Simplify right side
    221,335.20x = 58,780,581,135.66
  5. Step 5: Solve for x
    x = 58,780,581,135.66/221,335.20
  6. Step 6: Final answer
    x = 265,572.68

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1.5x scale

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.