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Finding the Fourth Proportional to 89,855.87, 124,001.22 and 49,569.54

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Solution

The fourth proportional to 89,855.87, 124,001.22 and 49,569.54 is: 68,406.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,855.87 : 124,001.22 = 49,569.54 : x
  2. Step 2: Convert to fraction form
    89,855.87/124,001.22 = 49,569.54/x
  3. Step 3: Cross multiply
    89,855.87x = 124,001.22 × 49,569.54
  4. Step 4: Simplify right side
    89,855.87x = 6,146,683,434.84
  5. Step 5: Solve for x
    x = 6,146,683,434.84/89,855.87
  6. Step 6: Final answer
    x = 68,406.03

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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.