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Finding the Fourth Proportional to 80,858.56, 111,631.12 and 54,046.48

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Solution

The fourth proportional to 80,858.56, 111,631.12 and 54,046.48 is: 74,615.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,858.56 : 111,631.12 = 54,046.48 : x
  2. Step 2: Convert to fraction form
    80,858.56/111,631.12 = 54,046.48/x
  3. Step 3: Cross multiply
    80,858.56x = 111,631.12 × 54,046.48
  4. Step 4: Simplify right side
    80,858.56x = 6,033,269,094.46
  5. Step 5: Solve for x
    x = 6,033,269,094.46/80,858.56
  6. Step 6: Final answer
    x = 74,615.09

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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.