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Finding the Fourth Proportional to 89,093.52, 133,640.28 and 83,188.62

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Solution

The fourth proportional to 89,093.52, 133,640.28 and 83,188.62 is: 124,782.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,093.52 : 133,640.28 = 83,188.62 : x
  2. Step 2: Convert to fraction form
    89,093.52/133,640.28 = 83,188.62/x
  3. Step 3: Cross multiply
    89,093.52x = 133,640.28 × 83,188.62
  4. Step 4: Simplify right side
    89,093.52x = 11,117,350,469.61
  5. Step 5: Solve for x
    x = 11,117,350,469.61/89,093.52
  6. Step 6: Final answer
    x = 124,782.93

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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.