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Finding the Fourth Proportional to 80,697.78, 111,364.20 and 44,889.30

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Solution

The fourth proportional to 80,697.78, 111,364.20 and 44,889.30 is: 61,947.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,697.78 : 111,364.20 = 44,889.30 : x
  2. Step 2: Convert to fraction form
    80,697.78/111,364.20 = 44,889.30/x
  3. Step 3: Cross multiply
    80,697.78x = 111,364.20 × 44,889.30
  4. Step 4: Simplify right side
    80,697.78x = 4,999,060,983.06
  5. Step 5: Solve for x
    x = 4,999,060,983.06/80,697.78
  6. Step 6: Final answer
    x = 61,947.94

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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.