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Finding the Fourth Proportional to 164,898.72, 247,181.54 and 79,383.98

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Solution

The fourth proportional to 164,898.72, 247,181.54 and 79,383.98 is: 118,995.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,898.72 : 247,181.54 = 79,383.98 : x
  2. Step 2: Convert to fraction form
    164,898.72/247,181.54 = 79,383.98/x
  3. Step 3: Cross multiply
    164,898.72x = 247,181.54 × 79,383.98
  4. Step 4: Simplify right side
    164,898.72x = 19,622,252,794.90
  5. Step 5: Solve for x
    x = 19,622,252,794.90/164,898.72
  6. Step 6: Final answer
    x = 118,995.79

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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.