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Finding the Fourth Proportional to 91,745.33, 126,616.20 and 50,913.30

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Solution

The fourth proportional to 91,745.33, 126,616.20 and 50,913.30 is: 70,264.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,745.33 : 126,616.20 = 50,913.30 : x
  2. Step 2: Convert to fraction form
    91,745.33/126,616.20 = 50,913.30/x
  3. Step 3: Cross multiply
    91,745.33x = 126,616.20 × 50,913.30
  4. Step 4: Simplify right side
    91,745.33x = 6,446,448,575.46
  5. Step 5: Solve for x
    x = 6,446,448,575.46/91,745.33
  6. Step 6: Final answer
    x = 70,264.60

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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.