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Finding the Fourth Proportional to 80,644.54, 111,125.34 and 62,384.34

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Solution

The fourth proportional to 80,644.54, 111,125.34 and 62,384.34 is: 85,963.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,644.54 : 111,125.34 = 62,384.34 : x
  2. Step 2: Convert to fraction form
    80,644.54/111,125.34 = 62,384.34/x
  3. Step 3: Cross multiply
    80,644.54x = 111,125.34 × 62,384.34
  4. Step 4: Simplify right side
    80,644.54x = 6,932,480,993.18
  5. Step 5: Solve for x
    x = 6,932,480,993.18/80,644.54
  6. Step 6: Final answer
    x = 85,963.43

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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.