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Finding the Fourth Proportional to 181,356.56, 250,321.32 and 117,690.48

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Solution

The fourth proportional to 181,356.56, 250,321.32 and 117,690.48 is: 162,444.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,356.56 : 250,321.32 = 117,690.48 : x
  2. Step 2: Convert to fraction form
    181,356.56/250,321.32 = 117,690.48/x
  3. Step 3: Cross multiply
    181,356.56x = 250,321.32 × 117,690.48
  4. Step 4: Simplify right side
    181,356.56x = 29,460,436,305.03
  5. Step 5: Solve for x
    x = 29,460,436,305.03/181,356.56
  6. Step 6: Final answer
    x = 162,444.83

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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.