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Finding the Fourth Proportional to 126,452.84, 174,508.46 and 69,867.88

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Solution

The fourth proportional to 126,452.84, 174,508.46 and 69,867.88 is: 96,419.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,452.84 : 174,508.46 = 69,867.88 : x
  2. Step 2: Convert to fraction form
    126,452.84/174,508.46 = 69,867.88/x
  3. Step 3: Cross multiply
    126,452.84x = 174,508.46 × 69,867.88
  4. Step 4: Simplify right side
    126,452.84x = 12,192,536,142.26
  5. Step 5: Solve for x
    x = 12,192,536,142.26/126,452.84
  6. Step 6: Final answer
    x = 96,419.63

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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.