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Finding the Fourth Proportional to 163,044.20, 244,274.70 and 139,716.20

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Solution

The fourth proportional to 163,044.20, 244,274.70 and 139,716.20 is: 209,324.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,044.20 : 244,274.70 = 139,716.20 : x
  2. Step 2: Convert to fraction form
    163,044.20/244,274.70 = 139,716.20/x
  3. Step 3: Cross multiply
    163,044.20x = 244,274.70 × 139,716.20
  4. Step 4: Simplify right side
    163,044.20x = 34,129,132,840.14
  5. Step 5: Solve for x
    x = 34,129,132,840.14/163,044.20
  6. Step 6: Final answer
    x = 209,324.42

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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.