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Finding the Fourth Proportional to 91,114.54, 125,738.27 and 50,827.30

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Solution

The fourth proportional to 91,114.54, 125,738.27 and 50,827.30 is: 70,141.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,114.54 : 125,738.27 = 50,827.30 : x
  2. Step 2: Convert to fraction form
    91,114.54/125,738.27 = 50,827.30/x
  3. Step 3: Cross multiply
    91,114.54x = 125,738.27 × 50,827.30
  4. Step 4: Simplify right side
    91,114.54x = 6,390,936,770.77
  5. Step 5: Solve for x
    x = 6,390,936,770.77/91,114.54
  6. Step 6: Final answer
    x = 70,141.79

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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.