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Finding the Fourth Proportional to 234,348.54, 351,412.38 and 84,569.28

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Solution

The fourth proportional to 234,348.54, 351,412.38 and 84,569.28 is: 126,814.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,348.54 : 351,412.38 = 84,569.28 : x
  2. Step 2: Convert to fraction form
    234,348.54/351,412.38 = 84,569.28/x
  3. Step 3: Cross multiply
    234,348.54x = 351,412.38 × 84,569.28
  4. Step 4: Simplify right side
    234,348.54x = 29,718,691,959.69
  5. Step 5: Solve for x
    x = 29,718,691,959.69/234,348.54
  6. Step 6: Final answer
    x = 126,814.07

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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.