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Finding the Fourth Proportional to 91,480.60, 137,220.90 and 44,824.60

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Solution

The fourth proportional to 91,480.60, 137,220.90 and 44,824.60 is: 67,236.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,480.60 : 137,220.90 = 44,824.60 : x
  2. Step 2: Convert to fraction form
    91,480.60/137,220.90 = 44,824.60/x
  3. Step 3: Cross multiply
    91,480.60x = 137,220.90 × 44,824.60
  4. Step 4: Simplify right side
    91,480.60x = 6,150,871,954.14
  5. Step 5: Solve for x
    x = 6,150,871,954.14/91,480.60
  6. Step 6: Final answer
    x = 67,236.90

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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.