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Finding the Fourth Proportional to 89,892.42, 124,046.19 and 49,609.97

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Solution

The fourth proportional to 89,892.42, 124,046.19 and 49,609.97 is: 68,458.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,892.42 : 124,046.19 = 49,609.97 : x
  2. Step 2: Convert to fraction form
    89,892.42/124,046.19 = 49,609.97/x
  3. Step 3: Cross multiply
    89,892.42x = 124,046.19 × 49,609.97
  4. Step 4: Simplify right side
    89,892.42x = 6,153,927,764.51
  5. Step 5: Solve for x
    x = 6,153,927,764.51/89,892.42
  6. Step 6: Final answer
    x = 68,458.81

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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.