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Finding the Fourth Proportional to 161,410.99, 222,746.11 and 88,818.31

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Solution

The fourth proportional to 161,410.99, 222,746.11 and 88,818.31 is: 122,568.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,410.99 : 222,746.11 = 88,818.31 : x
  2. Step 2: Convert to fraction form
    161,410.99/222,746.11 = 88,818.31/x
  3. Step 3: Cross multiply
    161,410.99x = 222,746.11 × 88,818.31
  4. Step 4: Simplify right side
    161,410.99x = 19,783,932,102.52
  5. Step 5: Solve for x
    x = 19,783,932,102.52/161,410.99
  6. Step 6: Final answer
    x = 122,568.68

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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.