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Finding the Fourth Proportional to 223,425.14, 335,138.31 and 65,665.89

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Solution

The fourth proportional to 223,425.14, 335,138.31 and 65,665.89 is: 98,499.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,425.14 : 335,138.31 = 65,665.89 : x
  2. Step 2: Convert to fraction form
    223,425.14/335,138.31 = 65,665.89/x
  3. Step 3: Cross multiply
    223,425.14x = 335,138.31 × 65,665.89
  4. Step 4: Simplify right side
    223,425.14x = 22,007,155,399.25
  5. Step 5: Solve for x
    x = 22,007,155,399.25/223,425.14
  6. Step 6: Final answer
    x = 98,499.01

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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.