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Finding the Fourth Proportional to 91,246.86, 125,850.69 and 54,910.44

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Solution

The fourth proportional to 91,246.86, 125,850.69 and 54,910.44 is: 75,734.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,246.86 : 125,850.69 = 54,910.44 : x
  2. Step 2: Convert to fraction form
    91,246.86/125,850.69 = 54,910.44/x
  3. Step 3: Cross multiply
    91,246.86x = 125,850.69 × 54,910.44
  4. Step 4: Simplify right side
    91,246.86x = 6,910,516,762.20
  5. Step 5: Solve for x
    x = 6,910,516,762.20/91,246.86
  6. Step 6: Final answer
    x = 75,734.30

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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.