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Finding the Fourth Proportional to 92,087.87, 138,131.81 and 60,915.83

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Solution

The fourth proportional to 92,087.87, 138,131.81 and 60,915.83 is: 91,373.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,087.87 : 138,131.81 = 60,915.83 : x
  2. Step 2: Convert to fraction form
    92,087.87/138,131.81 = 60,915.83/x
  3. Step 3: Cross multiply
    92,087.87x = 138,131.81 × 60,915.83
  4. Step 4: Simplify right side
    92,087.87x = 8,414,413,550.97
  5. Step 5: Solve for x
    x = 8,414,413,550.97/92,087.87
  6. Step 6: Final answer
    x = 91,373.75

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1.5x scale

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.