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Finding the Fourth Proportional to 84,644.16, 116,638.56 and 63,268.80

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Solution

The fourth proportional to 84,644.16, 116,638.56 and 63,268.80 is: 87,183.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,644.16 : 116,638.56 = 63,268.80 : x
  2. Step 2: Convert to fraction form
    84,644.16/116,638.56 = 63,268.80/x
  3. Step 3: Cross multiply
    84,644.16x = 116,638.56 × 63,268.80
  4. Step 4: Simplify right side
    84,644.16x = 7,379,581,724.93
  5. Step 5: Solve for x
    x = 7,379,581,724.93/84,644.16
  6. Step 6: Final answer
    x = 87,183.59

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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.