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Finding the Fourth Proportional to 223,491.36, 335,229.60 and 97,131.72

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Solution

The fourth proportional to 223,491.36, 335,229.60 and 97,131.72 is: 145,694.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,491.36 : 335,229.60 = 97,131.72 : x
  2. Step 2: Convert to fraction form
    223,491.36/335,229.60 = 97,131.72/x
  3. Step 3: Cross multiply
    223,491.36x = 335,229.60 × 97,131.72
  4. Step 4: Simplify right side
    223,491.36x = 32,561,427,642.91
  5. Step 5: Solve for x
    x = 32,561,427,642.91/223,491.36
  6. Step 6: Final answer
    x = 145,694.35

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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.