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Finding the Fourth Proportional to 69,915.81, 104,833.22 and 47,755.97

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Solution

The fourth proportional to 69,915.81, 104,833.22 and 47,755.97 is: 71,606.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,915.81 : 104,833.22 = 47,755.97 : x
  2. Step 2: Convert to fraction form
    69,915.81/104,833.22 = 47,755.97/x
  3. Step 3: Cross multiply
    69,915.81x = 104,833.22 × 47,755.97
  4. Step 4: Simplify right side
    69,915.81x = 5,006,411,346.38
  5. Step 5: Solve for x
    x = 5,006,411,346.38/69,915.81
  6. Step 6: Final answer
    x = 71,606.28

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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.