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Finding the Fourth Proportional to 73,857.60, 110,872.80 and 73,339.20

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Solution

The fourth proportional to 73,857.60, 110,872.80 and 73,339.20 is: 110,094.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,857.60 : 110,872.80 = 73,339.20 : x
  2. Step 2: Convert to fraction form
    73,857.60/110,872.80 = 73,339.20/x
  3. Step 3: Cross multiply
    73,857.60x = 110,872.80 × 73,339.20
  4. Step 4: Simplify right side
    73,857.60x = 8,131,322,453.76
  5. Step 5: Solve for x
    x = 8,131,322,453.76/73,857.60
  6. Step 6: Final answer
    x = 110,094.59

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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.