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Finding the Fourth Proportional to 184,310.84, 276,456.54 and 90,785

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Solution

The fourth proportional to 184,310.84, 276,456.54 and 90,785 is: 136,172.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,310.84 : 276,456.54 = 90,785 : x
  2. Step 2: Convert to fraction form
    184,310.84/276,456.54 = 90,785/x
  3. Step 3: Cross multiply
    184,310.84x = 276,456.54 × 90,785
  4. Step 4: Simplify right side
    184,310.84x = 25,098,106,983.90
  5. Step 5: Solve for x
    x = 25,098,106,983.90/184,310.84
  6. Step 6: Final answer
    x = 136,172.71

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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.