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Finding the Fourth Proportional to 92,091.38, 138,137.06 and 60,919.34

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Solution

The fourth proportional to 92,091.38, 138,137.06 and 60,919.34 is: 91,379.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,091.38 : 138,137.06 = 60,919.34 : x
  2. Step 2: Convert to fraction form
    92,091.38/138,137.06 = 60,919.34/x
  3. Step 3: Cross multiply
    92,091.38x = 138,137.06 × 60,919.34
  4. Step 4: Simplify right side
    92,091.38x = 8,415,218,524.74
  5. Step 5: Solve for x
    x = 8,415,218,524.74/92,091.38
  6. Step 6: Final answer
    x = 91,379.00

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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.