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Finding the Fourth Proportional to 161,299.92, 241,979.09 and 66,477.32

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Solution

The fourth proportional to 161,299.92, 241,979.09 and 66,477.32 is: 99,728.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,299.92 : 241,979.09 = 66,477.32 : x
  2. Step 2: Convert to fraction form
    161,299.92/241,979.09 = 66,477.32/x
  3. Step 3: Cross multiply
    161,299.92x = 241,979.09 × 66,477.32
  4. Step 4: Simplify right side
    161,299.92x = 16,086,121,066.85
  5. Step 5: Solve for x
    x = 16,086,121,066.85/161,299.92
  6. Step 6: Final answer
    x = 99,728.02

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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.