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Finding the Fourth Proportional to 120,044.52, 180,119.57 and 63,871.42

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Solution

The fourth proportional to 120,044.52, 180,119.57 and 63,871.42 is: 95,835.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,044.52 : 180,119.57 = 63,871.42 : x
  2. Step 2: Convert to fraction form
    120,044.52/180,119.57 = 63,871.42/x
  3. Step 3: Cross multiply
    120,044.52x = 180,119.57 × 63,871.42
  4. Step 4: Simplify right side
    120,044.52x = 11,504,492,705.69
  5. Step 5: Solve for x
    x = 11,504,492,705.69/120,044.52
  6. Step 6: Final answer
    x = 95,835.22

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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.