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Finding the Fourth Proportional to 221,401.20, 332,101.80 and 177,114.45

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Solution

The fourth proportional to 221,401.20, 332,101.80 and 177,114.45 is: 265,671.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,401.20 : 332,101.80 = 177,114.45 : x
  2. Step 2: Convert to fraction form
    221,401.20/332,101.80 = 177,114.45/x
  3. Step 3: Cross multiply
    221,401.20x = 332,101.80 × 177,114.45
  4. Step 4: Simplify right side
    221,401.20x = 58,820,027,651.01
  5. Step 5: Solve for x
    x = 58,820,027,651.01/221,401.20
  6. Step 6: Final answer
    x = 265,671.68

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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.