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Finding the Fourth Proportional to 131,469.70, 197,291.90 and 48,363.70

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Solution

The fourth proportional to 131,469.70, 197,291.90 and 48,363.70 is: 72,577.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,469.70 : 197,291.90 = 48,363.70 : x
  2. Step 2: Convert to fraction form
    131,469.70/197,291.90 = 48,363.70/x
  3. Step 3: Cross multiply
    131,469.70x = 197,291.90 × 48,363.70
  4. Step 4: Simplify right side
    131,469.70x = 9,541,766,264.03
  5. Step 5: Solve for x
    x = 9,541,766,264.03/131,469.70
  6. Step 6: Final answer
    x = 72,577.68

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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.