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Finding the Fourth Proportional to 60,160.87, 82,961.78 and 40,018.60

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Solution

The fourth proportional to 60,160.87, 82,961.78 and 40,018.60 is: 55,185.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,160.87 : 82,961.78 = 40,018.60 : x
  2. Step 2: Convert to fraction form
    60,160.87/82,961.78 = 40,018.60/x
  3. Step 3: Cross multiply
    60,160.87x = 82,961.78 × 40,018.60
  4. Step 4: Simplify right side
    60,160.87x = 3,320,014,389.15
  5. Step 5: Solve for x
    x = 3,320,014,389.15/60,160.87
  6. Step 6: Final answer
    x = 55,185.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.