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Finding the Fourth Proportional to 101,544.72, 140,147.19 and 63,310.47

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Solution

The fourth proportional to 101,544.72, 140,147.19 and 63,310.47 is: 87,378.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,544.72 : 140,147.19 = 63,310.47 : x
  2. Step 2: Convert to fraction form
    101,544.72/140,147.19 = 63,310.47/x
  3. Step 3: Cross multiply
    101,544.72x = 140,147.19 × 63,310.47
  4. Step 4: Simplify right side
    101,544.72x = 8,872,784,468.08
  5. Step 5: Solve for x
    x = 8,872,784,468.08/101,544.72
  6. Step 6: Final answer
    x = 87,378.10

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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.