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Finding the Fourth Proportional to 131,608.43, 181,619.11 and 71,179.14

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Solution

The fourth proportional to 131,608.43, 181,619.11 and 71,179.14 is: 98,226.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,608.43 : 181,619.11 = 71,179.14 : x
  2. Step 2: Convert to fraction form
    131,608.43/181,619.11 = 71,179.14/x
  3. Step 3: Cross multiply
    131,608.43x = 181,619.11 × 71,179.14
  4. Step 4: Simplify right side
    131,608.43x = 12,927,492,057.37
  5. Step 5: Solve for x
    x = 12,927,492,057.37/131,608.43
  6. Step 6: Final answer
    x = 98,226.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.