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Finding the Fourth Proportional to 217,803.47, 326,579.46 and 84,527.96

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Solution

The fourth proportional to 217,803.47, 326,579.46 and 84,527.96 is: 126,743.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,803.47 : 326,579.46 = 84,527.96 : x
  2. Step 2: Convert to fraction form
    217,803.47/326,579.46 = 84,527.96/x
  3. Step 3: Cross multiply
    217,803.47x = 326,579.46 × 84,527.96
  4. Step 4: Simplify right side
    217,803.47x = 27,605,093,898.80
  5. Step 5: Solve for x
    x = 27,605,093,898.80/217,803.47
  6. Step 6: Final answer
    x = 126,743.13

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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.