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Finding the Fourth Proportional to 169,424.31, 254,214.05 and 73,390.89

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Solution

The fourth proportional to 169,424.31, 254,214.05 and 73,390.89 is: 110,119.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,424.31 : 254,214.05 = 73,390.89 : x
  2. Step 2: Convert to fraction form
    169,424.31/254,214.05 = 73,390.89/x
  3. Step 3: Cross multiply
    169,424.31x = 254,214.05 × 73,390.89
  4. Step 4: Simplify right side
    169,424.31x = 18,656,995,013.05
  5. Step 5: Solve for x
    x = 18,656,995,013.05/169,424.31
  6. Step 6: Final answer
    x = 110,119.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.