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Finding the Fourth Proportional to 91,133.80, 125,578.02 and 67,222.60

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Solution

The fourth proportional to 91,133.80, 125,578.02 and 67,222.60 is: 92,629.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,133.80 : 125,578.02 = 67,222.60 : x
  2. Step 2: Convert to fraction form
    91,133.80/125,578.02 = 67,222.60/x
  3. Step 3: Cross multiply
    91,133.80x = 125,578.02 × 67,222.60
  4. Step 4: Simplify right side
    91,133.80x = 8,441,681,007.25
  5. Step 5: Solve for x
    x = 8,441,681,007.25/91,133.80
  6. Step 6: Final answer
    x = 92,629.53

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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.