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Finding the Fourth Proportional to 199,520.56, 275,338.24 and 127,900.56

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Solution

The fourth proportional to 199,520.56, 275,338.24 and 127,900.56 is: 176,502.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,520.56 : 275,338.24 = 127,900.56 : x
  2. Step 2: Convert to fraction form
    199,520.56/275,338.24 = 127,900.56/x
  3. Step 3: Cross multiply
    199,520.56x = 275,338.24 × 127,900.56
  4. Step 4: Simplify right side
    199,520.56x = 35,215,915,085.41
  5. Step 5: Solve for x
    x = 35,215,915,085.41/199,520.56
  6. Step 6: Final answer
    x = 176,502.69

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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.