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Finding the Fourth Proportional to 217,841.52, 326,529.96 and 124,145.52

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Solution

The fourth proportional to 217,841.52, 326,529.96 and 124,145.52 is: 186,085.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,841.52 : 326,529.96 = 124,145.52 : x
  2. Step 2: Convert to fraction form
    217,841.52/326,529.96 = 124,145.52/x
  3. Step 3: Cross multiply
    217,841.52x = 326,529.96 × 124,145.52
  4. Step 4: Simplify right side
    217,841.52x = 40,537,231,679.78
  5. Step 5: Solve for x
    x = 40,537,231,679.78/217,841.52
  6. Step 6: Final answer
    x = 186,085.88

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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.