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Finding the Fourth Proportional to 217,583.93, 326,391.17 and 91,096.52

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Solution

The fourth proportional to 217,583.93, 326,391.17 and 91,096.52 is: 136,651.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,583.93 : 326,391.17 = 91,096.52 : x
  2. Step 2: Convert to fraction form
    217,583.93/326,391.17 = 91,096.52/x
  3. Step 3: Cross multiply
    217,583.93x = 326,391.17 × 91,096.52
  4. Step 4: Simplify right side
    217,583.93x = 29,733,097,658.29
  5. Step 5: Solve for x
    x = 29,733,097,658.29/217,583.93
  6. Step 6: Final answer
    x = 136,651.16

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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.