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Finding the Fourth Proportional to 126,568.95, 174,658.74 and 69,969.39

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Solution

The fourth proportional to 126,568.95, 174,658.74 and 69,969.39 is: 96,554.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,568.95 : 174,658.74 = 69,969.39 : x
  2. Step 2: Convert to fraction form
    126,568.95/174,658.74 = 69,969.39/x
  3. Step 3: Cross multiply
    126,568.95x = 174,658.74 × 69,969.39
  4. Step 4: Simplify right side
    126,568.95x = 12,220,765,495.97
  5. Step 5: Solve for x
    x = 12,220,765,495.97/126,568.95
  6. Step 6: Final answer
    x = 96,554.21

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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.