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Finding the Fourth Proportional to 103,446.70, 155,246.85 and 41,161.90

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Solution

The fourth proportional to 103,446.70, 155,246.85 and 41,161.90 is: 61,773.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,446.70 : 155,246.85 = 41,161.90 : x
  2. Step 2: Convert to fraction form
    103,446.70/155,246.85 = 41,161.90/x
  3. Step 3: Cross multiply
    103,446.70x = 155,246.85 × 41,161.90
  4. Step 4: Simplify right side
    103,446.70x = 6,390,255,315.02
  5. Step 5: Solve for x
    x = 6,390,255,315.02/103,446.70
  6. Step 6: Final answer
    x = 61,773.41

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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.