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Finding the Fourth Proportional to 68,129.96, 94,021.14 and 37,917.32

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Solution

The fourth proportional to 68,129.96, 94,021.14 and 37,917.32 is: 52,326.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,129.96 : 94,021.14 = 37,917.32 : x
  2. Step 2: Convert to fraction form
    68,129.96/94,021.14 = 37,917.32/x
  3. Step 3: Cross multiply
    68,129.96x = 94,021.14 × 37,917.32
  4. Step 4: Simplify right side
    68,129.96x = 3,565,029,652.14
  5. Step 5: Solve for x
    x = 3,565,029,652.14/68,129.96
  6. Step 6: Final answer
    x = 52,326.90

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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.