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Finding the Fourth Proportional to 323,571.84, 485,357.76 and 98,932.28

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Solution

The fourth proportional to 323,571.84, 485,357.76 and 98,932.28 is: 148,398.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,571.84 : 485,357.76 = 98,932.28 : x
  2. Step 2: Convert to fraction form
    323,571.84/485,357.76 = 98,932.28/x
  3. Step 3: Cross multiply
    323,571.84x = 485,357.76 × 98,932.28
  4. Step 4: Simplify right side
    323,571.84x = 48,017,546,891.04
  5. Step 5: Solve for x
    x = 48,017,546,891.04/323,571.84
  6. Step 6: Final answer
    x = 148,398.41

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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.