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Finding the Fourth Proportional to 103,364.40, 155,046.60 and 33,250.80

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Solution

The fourth proportional to 103,364.40, 155,046.60 and 33,250.80 is: 49,876.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,364.40 : 155,046.60 = 33,250.80 : x
  2. Step 2: Convert to fraction form
    103,364.40/155,046.60 = 33,250.80/x
  3. Step 3: Cross multiply
    103,364.40x = 155,046.60 × 33,250.80
  4. Step 4: Simplify right side
    103,364.40x = 5,155,423,487.28
  5. Step 5: Solve for x
    x = 5,155,423,487.28/103,364.40
  6. Step 6: Final answer
    x = 49,876.20

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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.