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Finding the Fourth Proportional to 140,199.39, 193,468.41 and 79,764.39

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Solution

The fourth proportional to 140,199.39, 193,468.41 and 79,764.39 is: 110,071.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,199.39 : 193,468.41 = 79,764.39 : x
  2. Step 2: Convert to fraction form
    140,199.39/193,468.41 = 79,764.39/x
  3. Step 3: Cross multiply
    140,199.39x = 193,468.41 × 79,764.39
  4. Step 4: Simplify right side
    140,199.39x = 15,431,889,707.92
  5. Step 5: Solve for x
    x = 15,431,889,707.92/140,199.39
  6. Step 6: Final answer
    x = 110,071.02

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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.