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Finding the Fourth Proportional to 105,003.96, 157,609.62 and 45,880.44

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Solution

The fourth proportional to 105,003.96, 157,609.62 and 45,880.44 is: 68,865.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,003.96 : 157,609.62 = 45,880.44 : x
  2. Step 2: Convert to fraction form
    105,003.96/157,609.62 = 45,880.44/x
  3. Step 3: Cross multiply
    105,003.96x = 157,609.62 × 45,880.44
  4. Step 4: Simplify right side
    105,003.96x = 7,231,198,713.83
  5. Step 5: Solve for x
    x = 7,231,198,713.83/105,003.96
  6. Step 6: Final answer
    x = 68,865.96

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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.