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Finding the Fourth Proportional to 315,661.52, 435,483.92 and 233,073.42

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Solution

The fourth proportional to 315,661.52, 435,483.92 and 233,073.42 is: 321,546.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,661.52 : 435,483.92 = 233,073.42 : x
  2. Step 2: Convert to fraction form
    315,661.52/435,483.92 = 233,073.42/x
  3. Step 3: Cross multiply
    315,661.52x = 435,483.92 × 233,073.42
  4. Step 4: Simplify right side
    315,661.52x = 101,499,726,589.41
  5. Step 5: Solve for x
    x = 101,499,726,589.41/315,661.52
  6. Step 6: Final answer
    x = 321,546.09

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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.