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Finding the Fourth Proportional to 207,752.72, 286,700 and 131,305.68

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Solution

The fourth proportional to 207,752.72, 286,700 and 131,305.68 is: 181,202.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,752.72 : 286,700 = 131,305.68 : x
  2. Step 2: Convert to fraction form
    207,752.72/286,700 = 131,305.68/x
  3. Step 3: Cross multiply
    207,752.72x = 286,700 × 131,305.68
  4. Step 4: Simplify right side
    207,752.72x = 37,645,338,456
  5. Step 5: Solve for x
    x = 37,645,338,456/207,752.72
  6. Step 6: Final answer
    x = 181,202.63

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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.