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Finding the Fourth Proportional to 126,497.54, 174,556.14 and 69,908.78

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Solution

The fourth proportional to 126,497.54, 174,556.14 and 69,908.78 is: 96,468.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,497.54 : 174,556.14 = 69,908.78 : x
  2. Step 2: Convert to fraction form
    126,497.54/174,556.14 = 69,908.78/x
  3. Step 3: Cross multiply
    126,497.54x = 174,556.14 × 69,908.78
  4. Step 4: Simplify right side
    126,497.54x = 12,203,006,788.91
  5. Step 5: Solve for x
    x = 12,203,006,788.91/126,497.54
  6. Step 6: Final answer
    x = 96,468.33

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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.