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Finding the Fourth Proportional to 126,374.92, 174,396.72 and 69,786.28

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Solution

The fourth proportional to 126,374.92, 174,396.72 and 69,786.28 is: 96,304.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,374.92 : 174,396.72 = 69,786.28 : x
  2. Step 2: Convert to fraction form
    126,374.92/174,396.72 = 69,786.28/x
  3. Step 3: Cross multiply
    126,374.92x = 174,396.72 × 69,786.28
  4. Step 4: Simplify right side
    126,374.92x = 12,170,498,333.00
  5. Step 5: Solve for x
    x = 12,170,498,333.00/126,374.92
  6. Step 6: Final answer
    x = 96,304.70

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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.