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Finding the Fourth Proportional to 207,561.56, 286,456.52 and 127,042.68

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Solution

The fourth proportional to 207,561.56, 286,456.52 and 127,042.68 is: 175,332.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,561.56 : 286,456.52 = 127,042.68 : x
  2. Step 2: Convert to fraction form
    207,561.56/286,456.52 = 127,042.68/x
  3. Step 3: Cross multiply
    207,561.56x = 286,456.52 × 127,042.68
  4. Step 4: Simplify right side
    207,561.56x = 36,392,204,004.27
  5. Step 5: Solve for x
    x = 36,392,204,004.27/207,561.56
  6. Step 6: Final answer
    x = 175,332.10

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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.