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Finding the Fourth Proportional to 68,337.21, 102,403.76 and 55,944.21

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Solution

The fourth proportional to 68,337.21, 102,403.76 and 55,944.21 is: 83,832.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,337.21 : 102,403.76 = 55,944.21 : x
  2. Step 2: Convert to fraction form
    68,337.21/102,403.76 = 55,944.21/x
  3. Step 3: Cross multiply
    68,337.21x = 102,403.76 × 55,944.21
  4. Step 4: Simplify right side
    68,337.21x = 5,728,897,174.51
  5. Step 5: Solve for x
    x = 5,728,897,174.51/68,337.21
  6. Step 6: Final answer
    x = 83,832.76

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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.