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Finding the Fourth Proportional to 72,726.94, 108,915.45 and 41,467.42

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Solution

The fourth proportional to 72,726.94, 108,915.45 and 41,467.42 is: 62,101.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,726.94 : 108,915.45 = 41,467.42 : x
  2. Step 2: Convert to fraction form
    72,726.94/108,915.45 = 41,467.42/x
  3. Step 3: Cross multiply
    72,726.94x = 108,915.45 × 41,467.42
  4. Step 4: Simplify right side
    72,726.94x = 4,516,442,709.64
  5. Step 5: Solve for x
    x = 4,516,442,709.64/72,726.94
  6. Step 6: Final answer
    x = 62,101.37

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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.