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Finding the Fourth Proportional to 223,091.28, 334,612.44 and 65,321.28

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Solution

The fourth proportional to 223,091.28, 334,612.44 and 65,321.28 is: 97,974.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,091.28 : 334,612.44 = 65,321.28 : x
  2. Step 2: Convert to fraction form
    223,091.28/334,612.44 = 65,321.28/x
  3. Step 3: Cross multiply
    223,091.28x = 334,612.44 × 65,321.28
  4. Step 4: Simplify right side
    223,091.28x = 21,857,312,884.72
  5. Step 5: Solve for x
    x = 21,857,312,884.72/223,091.28
  6. Step 6: Final answer
    x = 97,974.75

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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.