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Finding the Fourth Proportional to 162,689.80, 244,012.20 and 50,447.20

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Solution

The fourth proportional to 162,689.80, 244,012.20 and 50,447.20 is: 75,663.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,689.80 : 244,012.20 = 50,447.20 : x
  2. Step 2: Convert to fraction form
    162,689.80/244,012.20 = 50,447.20/x
  3. Step 3: Cross multiply
    162,689.80x = 244,012.20 × 50,447.20
  4. Step 4: Simplify right side
    162,689.80x = 12,309,732,255.84
  5. Step 5: Solve for x
    x = 12,309,732,255.84/162,689.80
  6. Step 6: Final answer
    x = 75,663.82

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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.