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Finding the Fourth Proportional to 76,565.94, 114,861.17 and 26,660.22

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Solution

The fourth proportional to 76,565.94, 114,861.17 and 26,660.22 is: 39,994.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,565.94 : 114,861.17 = 26,660.22 : x
  2. Step 2: Convert to fraction form
    76,565.94/114,861.17 = 26,660.22/x
  3. Step 3: Cross multiply
    76,565.94x = 114,861.17 × 26,660.22
  4. Step 4: Simplify right side
    76,565.94x = 3,062,223,928.36
  5. Step 5: Solve for x
    x = 3,062,223,928.36/76,565.94
  6. Step 6: Final answer
    x = 39,994.60

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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.