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Finding the Fourth Proportional to 151,348.40, 227,022.60 and 127,728.80

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Solution

The fourth proportional to 151,348.40, 227,022.60 and 127,728.80 is: 191,593.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,348.40 : 227,022.60 = 127,728.80 : x
  2. Step 2: Convert to fraction form
    151,348.40/227,022.60 = 127,728.80/x
  3. Step 3: Cross multiply
    151,348.40x = 227,022.60 × 127,728.80
  4. Step 4: Simplify right side
    151,348.40x = 28,997,324,270.88
  5. Step 5: Solve for x
    x = 28,997,324,270.88/151,348.40
  6. Step 6: Final answer
    x = 191,593.20

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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.