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Finding the Fourth Proportional to 124,496.82, 186,745.14 and 45,617.22

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Solution

The fourth proportional to 124,496.82, 186,745.14 and 45,617.22 is: 68,425.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,496.82 : 186,745.14 = 45,617.22 : x
  2. Step 2: Convert to fraction form
    124,496.82/186,745.14 = 45,617.22/x
  3. Step 3: Cross multiply
    124,496.82x = 186,745.14 × 45,617.22
  4. Step 4: Simplify right side
    124,496.82x = 8,518,794,135.31
  5. Step 5: Solve for x
    x = 8,518,794,135.31/124,496.82
  6. Step 6: Final answer
    x = 68,425.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.