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Finding the Fourth Proportional to 192,988.78, 266,334.78 and 106,957.17

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Solution

The fourth proportional to 192,988.78, 266,334.78 and 106,957.17 is: 147,606.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,988.78 : 266,334.78 = 106,957.17 : x
  2. Step 2: Convert to fraction form
    192,988.78/266,334.78 = 106,957.17/x
  3. Step 3: Cross multiply
    192,988.78x = 266,334.78 × 106,957.17
  4. Step 4: Simplify right side
    192,988.78x = 28,486,415,007.21
  5. Step 5: Solve for x
    x = 28,486,415,007.21/192,988.78
  6. Step 6: Final answer
    x = 147,606.59

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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.