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Finding the Fourth Proportional to 207,892.53, 286,936.20 and 131,363.04

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Solution

The fourth proportional to 207,892.53, 286,936.20 and 131,363.04 is: 181,309.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,892.53 : 286,936.20 = 131,363.04 : x
  2. Step 2: Convert to fraction form
    207,892.53/286,936.20 = 131,363.04/x
  3. Step 3: Cross multiply
    207,892.53x = 286,936.20 × 131,363.04
  4. Step 4: Simplify right side
    207,892.53x = 37,692,811,518.05
  5. Step 5: Solve for x
    x = 37,692,811,518.05/207,892.53
  6. Step 6: Final answer
    x = 181,309.12

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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.