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Finding the Fourth Proportional to 338,717.14, 508,161.14 and 239,071.96

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Solution

The fourth proportional to 338,717.14, 508,161.14 and 239,071.96 is: 358,668.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,717.14 : 508,161.14 = 239,071.96 : x
  2. Step 2: Convert to fraction form
    338,717.14/508,161.14 = 239,071.96/x
  3. Step 3: Cross multiply
    338,717.14x = 508,161.14 × 239,071.96
  4. Step 4: Simplify right side
    338,717.14x = 121,487,078,558.37
  5. Step 5: Solve for x
    x = 121,487,078,558.37/338,717.14
  6. Step 6: Final answer
    x = 358,668.23

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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.