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Finding the Fourth Proportional to 103,803.18, 155,626.26 and 43,850.22

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Solution

The fourth proportional to 103,803.18, 155,626.26 and 43,850.22 is: 65,742.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,803.18 : 155,626.26 = 43,850.22 : x
  2. Step 2: Convert to fraction form
    103,803.18/155,626.26 = 43,850.22/x
  3. Step 3: Cross multiply
    103,803.18x = 155,626.26 × 43,850.22
  4. Step 4: Simplify right side
    103,803.18x = 6,824,245,738.78
  5. Step 5: Solve for x
    x = 6,824,245,738.78/103,803.18
  6. Step 6: Final answer
    x = 65,742.16

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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.