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Finding the Fourth Proportional to 119,857.35, 179,659.64 and 39,873.96

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Solution

The fourth proportional to 119,857.35, 179,659.64 and 39,873.96 is: 59,768.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,857.35 : 179,659.64 = 39,873.96 : x
  2. Step 2: Convert to fraction form
    119,857.35/179,659.64 = 39,873.96/x
  3. Step 3: Cross multiply
    119,857.35x = 179,659.64 × 39,873.96
  4. Step 4: Simplify right side
    119,857.35x = 7,163,740,724.94
  5. Step 5: Solve for x
    x = 7,163,740,724.94/119,857.35
  6. Step 6: Final answer
    x = 59,768.89

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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.