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Finding the Fourth Proportional to 124,355.25, 171,610.25 and 67,766.63

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Solution

The fourth proportional to 124,355.25, 171,610.25 and 67,766.63 is: 93,517.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,355.25 : 171,610.25 = 67,766.63 : x
  2. Step 2: Convert to fraction form
    124,355.25/171,610.25 = 67,766.63/x
  3. Step 3: Cross multiply
    124,355.25x = 171,610.25 × 67,766.63
  4. Step 4: Simplify right side
    124,355.25x = 11,629,447,119.07
  5. Step 5: Solve for x
    x = 11,629,447,119.07/124,355.25
  6. Step 6: Final answer
    x = 93,517.94

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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.