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Finding the Fourth Proportional to 89,416.80, 134,076.60 and 36,831.60

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Solution

The fourth proportional to 89,416.80, 134,076.60 and 36,831.60 is: 55,227.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,416.80 : 134,076.60 = 36,831.60 : x
  2. Step 2: Convert to fraction form
    89,416.80/134,076.60 = 36,831.60/x
  3. Step 3: Cross multiply
    89,416.80x = 134,076.60 × 36,831.60
  4. Step 4: Simplify right side
    89,416.80x = 4,938,255,700.56
  5. Step 5: Solve for x
    x = 4,938,255,700.56/89,416.80
  6. Step 6: Final answer
    x = 55,227.38

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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.