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Finding the Fourth Proportional to 73,366.98, 110,055.15 and 20,780.52

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Solution

The fourth proportional to 73,366.98, 110,055.15 and 20,780.52 is: 31,172.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,366.98 : 110,055.15 = 20,780.52 : x
  2. Step 2: Convert to fraction form
    73,366.98/110,055.15 = 20,780.52/x
  3. Step 3: Cross multiply
    73,366.98x = 110,055.15 × 20,780.52
  4. Step 4: Simplify right side
    73,366.98x = 2,287,003,245.68
  5. Step 5: Solve for x
    x = 2,287,003,245.68/73,366.98
  6. Step 6: Final answer
    x = 31,172.11

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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.