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Finding the Fourth Proportional to 101,516.44, 140,092.88 and 55,575.40

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Solution

The fourth proportional to 101,516.44, 140,092.88 and 55,575.40 is: 76,694.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,516.44 : 140,092.88 = 55,575.40 : x
  2. Step 2: Convert to fraction form
    101,516.44/140,092.88 = 55,575.40/x
  3. Step 3: Cross multiply
    101,516.44x = 140,092.88 × 55,575.40
  4. Step 4: Simplify right side
    101,516.44x = 7,785,717,843.15
  5. Step 5: Solve for x
    x = 7,785,717,843.15/101,516.44
  6. Step 6: Final answer
    x = 76,694.16

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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.