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Finding the Fourth Proportional to 89,959.37, 124,144.45 and 49,672.37

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Solution

The fourth proportional to 89,959.37, 124,144.45 and 49,672.37 is: 68,548.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,959.37 : 124,144.45 = 49,672.37 : x
  2. Step 2: Convert to fraction form
    89,959.37/124,144.45 = 49,672.37/x
  3. Step 3: Cross multiply
    89,959.37x = 124,144.45 × 49,672.37
  4. Step 4: Simplify right side
    89,959.37x = 6,166,548,433.12
  5. Step 5: Solve for x
    x = 6,166,548,433.12/89,959.37
  6. Step 6: Final answer
    x = 68,548.15

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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.