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Finding the Fourth Proportional to 103,441.90, 155,175.02 and 36,891.50

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Solution

The fourth proportional to 103,441.90, 155,175.02 and 36,891.50 is: 55,341.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,441.90 : 155,175.02 = 36,891.50 : x
  2. Step 2: Convert to fraction form
    103,441.90/155,175.02 = 36,891.50/x
  3. Step 3: Cross multiply
    103,441.90x = 155,175.02 × 36,891.50
  4. Step 4: Simplify right side
    103,441.90x = 5,724,639,250.33
  5. Step 5: Solve for x
    x = 5,724,639,250.33/103,441.90
  6. Step 6: Final answer
    x = 55,341.59

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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.