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Finding the Fourth Proportional to 119,181.52, 178,847.58 and 66,625.48

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Solution

The fourth proportional to 119,181.52, 178,847.58 and 66,625.48 is: 99,980.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,181.52 : 178,847.58 = 66,625.48 : x
  2. Step 2: Convert to fraction form
    119,181.52/178,847.58 = 66,625.48/x
  3. Step 3: Cross multiply
    119,181.52x = 178,847.58 × 66,625.48
  4. Step 4: Simplify right side
    119,181.52x = 11,915,805,864.34
  5. Step 5: Solve for x
    x = 11,915,805,864.34/119,181.52
  6. Step 6: Final answer
    x = 99,980.31

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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.