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Finding the Fourth Proportional to 92,668.86, 137,811.17 and 89,716.41

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Solution

The fourth proportional to 92,668.86, 137,811.17 and 89,716.41 is: 133,420.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,668.86 : 137,811.17 = 89,716.41 : x
  2. Step 2: Convert to fraction form
    92,668.86/137,811.17 = 89,716.41/x
  3. Step 3: Cross multiply
    92,668.86x = 137,811.17 × 89,716.41
  4. Step 4: Simplify right side
    92,668.86x = 12,363,923,654.59
  5. Step 5: Solve for x
    x = 12,363,923,654.59/92,668.86
  6. Step 6: Final answer
    x = 133,420.48

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.