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Finding the Fourth Proportional to 126,759.52, 174,929.52 and 70,171.84

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Solution

The fourth proportional to 126,759.52, 174,929.52 and 70,171.84 is: 96,837.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,759.52 : 174,929.52 = 70,171.84 : x
  2. Step 2: Convert to fraction form
    126,759.52/174,929.52 = 70,171.84/x
  3. Step 3: Cross multiply
    126,759.52x = 174,929.52 × 70,171.84
  4. Step 4: Simplify right side
    126,759.52x = 12,275,126,288.72
  5. Step 5: Solve for x
    x = 12,275,126,288.72/126,759.52
  6. Step 6: Final answer
    x = 96,837.90

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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.