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Finding the Fourth Proportional to 217,468.48, 326,233.14 and 67,719.64

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Solution

The fourth proportional to 217,468.48, 326,233.14 and 67,719.64 is: 101,588.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,468.48 : 326,233.14 = 67,719.64 : x
  2. Step 2: Convert to fraction form
    217,468.48/326,233.14 = 67,719.64/x
  3. Step 3: Cross multiply
    217,468.48x = 326,233.14 × 67,719.64
  4. Step 4: Simplify right side
    217,468.48x = 22,092,390,796.87
  5. Step 5: Solve for x
    x = 22,092,390,796.87/217,468.48
  6. Step 6: Final answer
    x = 101,588.93

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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.