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Finding the Fourth Proportional to 181,956.35, 251,114.18 and 100,299.11

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Solution

The fourth proportional to 181,956.35, 251,114.18 and 100,299.11 is: 138,420.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,956.35 : 251,114.18 = 100,299.11 : x
  2. Step 2: Convert to fraction form
    181,956.35/251,114.18 = 100,299.11/x
  3. Step 3: Cross multiply
    181,956.35x = 251,114.18 × 100,299.11
  4. Step 4: Simplify right side
    181,956.35x = 25,186,527,005.31
  5. Step 5: Solve for x
    x = 25,186,527,005.31/181,956.35
  6. Step 6: Final answer
    x = 138,420.71

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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.