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Finding the Fourth Proportional to 107,351.20, 161,026.80 and 48,302.20

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Solution

The fourth proportional to 107,351.20, 161,026.80 and 48,302.20 is: 72,453.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,351.20 : 161,026.80 = 48,302.20 : x
  2. Step 2: Convert to fraction form
    107,351.20/161,026.80 = 48,302.20/x
  3. Step 3: Cross multiply
    107,351.20x = 161,026.80 × 48,302.20
  4. Step 4: Simplify right side
    107,351.20x = 7,777,948,698.96
  5. Step 5: Solve for x
    x = 7,777,948,698.96/107,351.20
  6. Step 6: Final answer
    x = 72,453.30

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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.