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Finding the Fourth Proportional to 72,958.92, 100,677.27 and 41,135.64

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Solution

The fourth proportional to 72,958.92, 100,677.27 and 41,135.64 is: 56,763.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,958.92 : 100,677.27 = 41,135.64 : x
  2. Step 2: Convert to fraction form
    72,958.92/100,677.27 = 41,135.64/x
  3. Step 3: Cross multiply
    72,958.92x = 100,677.27 × 41,135.64
  4. Step 4: Simplify right side
    72,958.92x = 4,141,423,934.90
  5. Step 5: Solve for x
    x = 4,141,423,934.90/72,958.92
  6. Step 6: Final answer
    x = 56,763.78

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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.