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Finding the Fourth Proportional to 126,751.78, 174,936.22 and 73,026.58

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Solution

The fourth proportional to 126,751.78, 174,936.22 and 73,026.58 is: 100,787.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,751.78 : 174,936.22 = 73,026.58 : x
  2. Step 2: Convert to fraction form
    126,751.78/174,936.22 = 73,026.58/x
  3. Step 3: Cross multiply
    126,751.78x = 174,936.22 × 73,026.58
  4. Step 4: Simplify right side
    126,751.78x = 12,774,993,864.73
  5. Step 5: Solve for x
    x = 12,774,993,864.73/126,751.78
  6. Step 6: Final answer
    x = 100,787.49

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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.