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Finding the Fourth Proportional to 89,858.96, 124,006.31 and 49,574.22

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Solution

The fourth proportional to 89,858.96, 124,006.31 and 49,574.22 is: 68,412.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,858.96 : 124,006.31 = 49,574.22 : x
  2. Step 2: Convert to fraction form
    89,858.96/124,006.31 = 49,574.22/x
  3. Step 3: Cross multiply
    89,858.96x = 124,006.31 × 49,574.22
  4. Step 4: Simplify right side
    89,858.96x = 6,147,516,093.33
  5. Step 5: Solve for x
    x = 6,147,516,093.33/89,858.96
  6. Step 6: Final answer
    x = 68,412.95

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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.