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Finding the Fourth Proportional to 317,987.92, 475,943.46 and 233,725.78

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Solution

The fourth proportional to 317,987.92, 475,943.46 and 233,725.78 is: 349,825.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,987.92 : 475,943.46 = 233,725.78 : x
  2. Step 2: Convert to fraction form
    317,987.92/475,943.46 = 233,725.78/x
  3. Step 3: Cross multiply
    317,987.92x = 475,943.46 × 233,725.78
  4. Step 4: Simplify right side
    317,987.92x = 111,240,256,424.40
  5. Step 5: Solve for x
    x = 111,240,256,424.40/317,987.92
  6. Step 6: Final answer
    x = 349,825.42

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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.