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Finding the Fourth Proportional to 79,726.26, 110,018.19 and 43,915.50

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Solution

The fourth proportional to 79,726.26, 110,018.19 and 43,915.50 is: 60,601.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,726.26 : 110,018.19 = 43,915.50 : x
  2. Step 2: Convert to fraction form
    79,726.26/110,018.19 = 43,915.50/x
  3. Step 3: Cross multiply
    79,726.26x = 110,018.19 × 43,915.50
  4. Step 4: Simplify right side
    79,726.26x = 4,831,503,822.95
  5. Step 5: Solve for x
    x = 4,831,503,822.95/79,726.26
  6. Step 6: Final answer
    x = 60,601.16

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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.