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Finding the Fourth Proportional to 91,096.89, 125,713.88 and 50,813.25

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Solution

The fourth proportional to 91,096.89, 125,713.88 and 50,813.25 is: 70,122.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,096.89 : 125,713.88 = 50,813.25 : x
  2. Step 2: Convert to fraction form
    91,096.89/125,713.88 = 50,813.25/x
  3. Step 3: Cross multiply
    91,096.89x = 125,713.88 × 50,813.25
  4. Step 4: Simplify right side
    91,096.89x = 6,387,930,558.84
  5. Step 5: Solve for x
    x = 6,387,930,558.84/91,096.89
  6. Step 6: Final answer
    x = 70,122.38

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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.