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Finding the Fourth Proportional to 73,537.20, 110,305.80 and 65,080.80

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Solution

The fourth proportional to 73,537.20, 110,305.80 and 65,080.80 is: 97,621.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,537.20 : 110,305.80 = 65,080.80 : x
  2. Step 2: Convert to fraction form
    73,537.20/110,305.80 = 65,080.80/x
  3. Step 3: Cross multiply
    73,537.20x = 110,305.80 × 65,080.80
  4. Step 4: Simplify right side
    73,537.20x = 7,178,789,708.64
  5. Step 5: Solve for x
    x = 7,178,789,708.64/73,537.20
  6. Step 6: Final answer
    x = 97,621.20

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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.