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Finding the Fourth Proportional to 221,440.70, 332,128.65 and 63,652.70

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Solution

The fourth proportional to 221,440.70, 332,128.65 and 63,652.70 is: 95,469.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,440.70 : 332,128.65 = 63,652.70 : x
  2. Step 2: Convert to fraction form
    221,440.70/332,128.65 = 63,652.70/x
  3. Step 3: Cross multiply
    221,440.70x = 332,128.65 × 63,652.70
  4. Step 4: Simplify right side
    221,440.70x = 21,140,885,319.86
  5. Step 5: Solve for x
    x = 21,140,885,319.86/221,440.70
  6. Step 6: Final answer
    x = 95,469.74

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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.