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Finding the Fourth Proportional to 181,967.74, 251,112.11 and 99,182.43

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Solution

The fourth proportional to 181,967.74, 251,112.11 and 99,182.43 is: 136,869.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,967.74 : 251,112.11 = 99,182.43 : x
  2. Step 2: Convert to fraction form
    181,967.74/251,112.11 = 99,182.43/x
  3. Step 3: Cross multiply
    181,967.74x = 251,112.11 × 99,182.43
  4. Step 4: Simplify right side
    181,967.74x = 24,905,910,461.85
  5. Step 5: Solve for x
    x = 24,905,910,461.85/181,967.74
  6. Step 6: Final answer
    x = 136,869.93

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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.