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Finding the Fourth Proportional to 101,608.62, 140,288.39 and 63,426.32

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Solution

The fourth proportional to 101,608.62, 140,288.39 and 63,426.32 is: 87,571.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,608.62 : 140,288.39 = 63,426.32 : x
  2. Step 2: Convert to fraction form
    101,608.62/140,288.39 = 63,426.32/x
  3. Step 3: Cross multiply
    101,608.62x = 140,288.39 × 63,426.32
  4. Step 4: Simplify right side
    101,608.62x = 8,897,976,316.42
  5. Step 5: Solve for x
    x = 8,897,976,316.42/101,608.62
  6. Step 6: Final answer
    x = 87,571.08

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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.