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Finding the Fourth Proportional to 335,009.48, 462,330.81 and 189,843.40

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Solution

The fourth proportional to 335,009.48, 462,330.81 and 189,843.40 is: 261,993.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,009.48 : 462,330.81 = 189,843.40 : x
  2. Step 2: Convert to fraction form
    335,009.48/462,330.81 = 189,843.40/x
  3. Step 3: Cross multiply
    335,009.48x = 462,330.81 × 189,843.40
  4. Step 4: Simplify right side
    335,009.48x = 87,770,452,895.15
  5. Step 5: Solve for x
    x = 87,770,452,895.15/335,009.48
  6. Step 6: Final answer
    x = 261,993.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.