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Finding the Fourth Proportional to 92,695.50, 137,850.81 and 89,743.02

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Solution

The fourth proportional to 92,695.50, 137,850.81 and 89,743.02 is: 133,460.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,695.50 : 137,850.81 = 89,743.02 : x
  2. Step 2: Convert to fraction form
    92,695.50/137,850.81 = 89,743.02/x
  3. Step 3: Cross multiply
    92,695.50x = 137,850.81 × 89,743.02
  4. Step 4: Simplify right side
    92,695.50x = 12,371,147,998.85
  5. Step 5: Solve for x
    x = 12,371,147,998.85/92,695.50
  6. Step 6: Final answer
    x = 133,460.07

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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.