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Finding the Fourth Proportional to 139,296, 192,136.08 and 93,357

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Solution

The fourth proportional to 139,296, 192,136.08 and 93,357 is: 128,770.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,296 : 192,136.08 = 93,357 : x
  2. Step 2: Convert to fraction form
    139,296/192,136.08 = 93,357/x
  3. Step 3: Cross multiply
    139,296x = 192,136.08 × 93,357
  4. Step 4: Simplify right side
    139,296x = 17,937,248,020.56
  5. Step 5: Solve for x
    x = 17,937,248,020.56/139,296
  6. Step 6: Final answer
    x = 128,770.73

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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.