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Finding the Fourth Proportional to 73,751.45, 110,641.41 and 31,625.64

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Solution

The fourth proportional to 73,751.45, 110,641.41 and 31,625.64 is: 47,444.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,751.45 : 110,641.41 = 31,625.64 : x
  2. Step 2: Convert to fraction form
    73,751.45/110,641.41 = 31,625.64/x
  3. Step 3: Cross multiply
    73,751.45x = 110,641.41 × 31,625.64
  4. Step 4: Simplify right side
    73,751.45x = 3,499,105,401.75
  5. Step 5: Solve for x
    x = 3,499,105,401.75/73,751.45
  6. Step 6: Final answer
    x = 47,444.57

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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.