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Finding the Fourth Proportional to 193,640.64, 267,220.80 and 108,752.64

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Solution

The fourth proportional to 193,640.64, 267,220.80 and 108,752.64 is: 150,076.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,640.64 : 267,220.80 = 108,752.64 : x
  2. Step 2: Convert to fraction form
    193,640.64/267,220.80 = 108,752.64/x
  3. Step 3: Cross multiply
    193,640.64x = 267,220.80 × 108,752.64
  4. Step 4: Simplify right side
    193,640.64x = 29,060,967,462.91
  5. Step 5: Solve for x
    x = 29,060,967,462.91/193,640.64
  6. Step 6: Final answer
    x = 150,076.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.