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Finding the Fourth Proportional to 169,443.34, 253,999.75 and 80,673.01

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Solution

The fourth proportional to 169,443.34, 253,999.75 and 80,673.01 is: 120,930.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,443.34 : 253,999.75 = 80,673.01 : x
  2. Step 2: Convert to fraction form
    169,443.34/253,999.75 = 80,673.01/x
  3. Step 3: Cross multiply
    169,443.34x = 253,999.75 × 80,673.01
  4. Step 4: Simplify right side
    169,443.34x = 20,490,924,371.75
  5. Step 5: Solve for x
    x = 20,490,924,371.75/169,443.34
  6. Step 6: Final answer
    x = 120,930.83

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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.