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Finding the Fourth Proportional to 119,318.50, 178,978.83 and 36,212.50

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Solution

The fourth proportional to 119,318.50, 178,978.83 and 36,212.50 is: 54,319.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,318.50 : 178,978.83 = 36,212.50 : x
  2. Step 2: Convert to fraction form
    119,318.50/178,978.83 = 36,212.50/x
  3. Step 3: Cross multiply
    119,318.50x = 178,978.83 × 36,212.50
  4. Step 4: Simplify right side
    119,318.50x = 6,481,270,881.38
  5. Step 5: Solve for x
    x = 6,481,270,881.38/119,318.50
  6. Step 6: Final answer
    x = 54,319.08

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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.