Home / 217,673.39-326,330.15-82,709.53

Finding the Fourth Proportional to 217,673.39, 326,330.15 and 82,709.53

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Solution

The fourth proportional to 217,673.39, 326,330.15 and 82,709.53 is: 123,995.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,673.39 : 326,330.15 = 82,709.53 : x
  2. Step 2: Convert to fraction form
    217,673.39/326,330.15 = 82,709.53/x
  3. Step 3: Cross multiply
    217,673.39x = 326,330.15 × 82,709.53
  4. Step 4: Simplify right side
    217,673.39x = 26,990,612,101.96
  5. Step 5: Solve for x
    x = 26,990,612,101.96/217,673.39
  6. Step 6: Final answer
    x = 123,995.92

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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.