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Finding the Fourth Proportional to 69,816.92, 104,712.80 and 29,858.38

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Solution

The fourth proportional to 69,816.92, 104,712.80 and 29,858.38 is: 44,782.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,816.92 : 104,712.80 = 29,858.38 : x
  2. Step 2: Convert to fraction form
    69,816.92/104,712.80 = 29,858.38/x
  3. Step 3: Cross multiply
    69,816.92x = 104,712.80 × 29,858.38
  4. Step 4: Simplify right side
    69,816.92x = 3,126,554,403.77
  5. Step 5: Solve for x
    x = 3,126,554,403.77/69,816.92
  6. Step 6: Final answer
    x = 44,782.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.