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Finding the Fourth Proportional to 119,289, 178,934.58 and 36,183

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Solution

The fourth proportional to 119,289, 178,934.58 and 36,183 is: 54,274.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,289 : 178,934.58 = 36,183 : x
  2. Step 2: Convert to fraction form
    119,289/178,934.58 = 36,183/x
  3. Step 3: Cross multiply
    119,289x = 178,934.58 × 36,183
  4. Step 4: Simplify right side
    119,289x = 6,474,389,908.14
  5. Step 5: Solve for x
    x = 6,474,389,908.14/119,289
  6. Step 6: Final answer
    x = 54,274.83

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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.