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Finding the Fourth Proportional to 217,840.52, 326,528.46 and 124,144.52

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Solution

The fourth proportional to 217,840.52, 326,528.46 and 124,144.52 is: 186,084.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,840.52 : 326,528.46 = 124,144.52 : x
  2. Step 2: Convert to fraction form
    217,840.52/326,528.46 = 124,144.52/x
  3. Step 3: Cross multiply
    217,840.52x = 326,528.46 × 124,144.52
  4. Step 4: Simplify right side
    217,840.52x = 40,536,718,933.04
  5. Step 5: Solve for x
    x = 40,536,718,933.04/217,840.52
  6. Step 6: Final answer
    x = 186,084.38

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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.