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Finding the Fourth Proportional to 119,292, 178,939.08 and 36,186

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Solution

The fourth proportional to 119,292, 178,939.08 and 36,186 is: 54,279.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,292 : 178,939.08 = 36,186 : x
  2. Step 2: Convert to fraction form
    119,292/178,939.08 = 36,186/x
  3. Step 3: Cross multiply
    119,292x = 178,939.08 × 36,186
  4. Step 4: Simplify right side
    119,292x = 6,475,089,548.88
  5. Step 5: Solve for x
    x = 6,475,089,548.88/119,292
  6. Step 6: Final answer
    x = 54,279.33

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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.