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Finding the Fourth Proportional to 73,266.40, 109,899.60 and 64,226.80

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Solution

The fourth proportional to 73,266.40, 109,899.60 and 64,226.80 is: 96,340.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,266.40 : 109,899.60 = 64,226.80 : x
  2. Step 2: Convert to fraction form
    73,266.40/109,899.60 = 64,226.80/x
  3. Step 3: Cross multiply
    73,266.40x = 109,899.60 × 64,226.80
  4. Step 4: Simplify right side
    73,266.40x = 7,058,499,629.28
  5. Step 5: Solve for x
    x = 7,058,499,629.28/73,266.40
  6. Step 6: Final answer
    x = 96,340.20

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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.