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Finding the Fourth Proportional to 234,646.61, 323,640.26 and 154,044.72

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Solution

The fourth proportional to 234,646.61, 323,640.26 and 154,044.72 is: 212,468.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,646.61 : 323,640.26 = 154,044.72 : x
  2. Step 2: Convert to fraction form
    234,646.61/323,640.26 = 154,044.72/x
  3. Step 3: Cross multiply
    234,646.61x = 323,640.26 × 154,044.72
  4. Step 4: Simplify right side
    234,646.61x = 49,855,073,039.87
  5. Step 5: Solve for x
    x = 49,855,073,039.87/234,646.61
  6. Step 6: Final answer
    x = 212,468.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.