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Finding the Fourth Proportional to 126,980.82, 175,235.52 and 69,625.38

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Solution

The fourth proportional to 126,980.82, 175,235.52 and 69,625.38 is: 96,084.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,980.82 : 175,235.52 = 69,625.38 : x
  2. Step 2: Convert to fraction form
    126,980.82/175,235.52 = 69,625.38/x
  3. Step 3: Cross multiply
    126,980.82x = 175,235.52 × 69,625.38
  4. Step 4: Simplify right side
    126,980.82x = 12,200,839,669.50
  5. Step 5: Solve for x
    x = 12,200,839,669.50/126,980.82
  6. Step 6: Final answer
    x = 96,084.11

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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.