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Finding the Fourth Proportional to 140,366.61, 193,717.44 and 79,956.18

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Solution

The fourth proportional to 140,366.61, 193,717.44 and 79,956.18 is: 110,346.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,366.61 : 193,717.44 = 79,956.18 : x
  2. Step 2: Convert to fraction form
    140,366.61/193,717.44 = 79,956.18/x
  3. Step 3: Cross multiply
    140,366.61x = 193,717.44 × 79,956.18
  4. Step 4: Simplify right side
    140,366.61x = 15,488,906,501.78
  5. Step 5: Solve for x
    x = 15,488,906,501.78/140,366.61
  6. Step 6: Final answer
    x = 110,346.09

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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.