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Finding the Fourth Proportional to 313,594.31, 432,738.25 and 173,891.68

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Solution

The fourth proportional to 313,594.31, 432,738.25 and 173,891.68 is: 239,958.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,594.31 : 432,738.25 = 173,891.68 : x
  2. Step 2: Convert to fraction form
    313,594.31/432,738.25 = 173,891.68/x
  3. Step 3: Cross multiply
    313,594.31x = 432,738.25 × 173,891.68
  4. Step 4: Simplify right side
    313,594.31x = 75,249,581,292.76
  5. Step 5: Solve for x
    x = 75,249,581,292.76/313,594.31
  6. Step 6: Final answer
    x = 239,958.38

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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.