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Finding the Fourth Proportional to 104,508.25, 144,226.86 and 61,489.96

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Solution

The fourth proportional to 104,508.25, 144,226.86 and 61,489.96 is: 84,859.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,508.25 : 144,226.86 = 61,489.96 : x
  2. Step 2: Convert to fraction form
    104,508.25/144,226.86 = 61,489.96/x
  3. Step 3: Cross multiply
    104,508.25x = 144,226.86 × 61,489.96
  4. Step 4: Simplify right side
    104,508.25x = 8,868,503,852.33
  5. Step 5: Solve for x
    x = 8,868,503,852.33/104,508.25
  6. Step 6: Final answer
    x = 84,859.37

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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.