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Finding the Fourth Proportional to 84,901.50, 127,177.20 and 49,734.54

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Solution

The fourth proportional to 84,901.50, 127,177.20 and 49,734.54 is: 74,499.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,901.50 : 127,177.20 = 49,734.54 : x
  2. Step 2: Convert to fraction form
    84,901.50/127,177.20 = 49,734.54/x
  3. Step 3: Cross multiply
    84,901.50x = 127,177.20 × 49,734.54
  4. Step 4: Simplify right side
    84,901.50x = 6,325,099,540.49
  5. Step 5: Solve for x
    x = 6,325,099,540.49/84,901.50
  6. Step 6: Final answer
    x = 74,499.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.