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Finding the Fourth Proportional to 199,300.39, 274,879.02 and 127,687.12

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Solution

The fourth proportional to 199,300.39, 274,879.02 and 127,687.12 is: 176,108.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,300.39 : 274,879.02 = 127,687.12 : x
  2. Step 2: Convert to fraction form
    199,300.39/274,879.02 = 127,687.12/x
  3. Step 3: Cross multiply
    199,300.39x = 274,879.02 × 127,687.12
  4. Step 4: Simplify right side
    199,300.39x = 35,098,510,412.22
  5. Step 5: Solve for x
    x = 35,098,510,412.22/199,300.39
  6. Step 6: Final answer
    x = 176,108.59

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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.