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Finding the Fourth Proportional to 79,455.93, 109,649.22 and 43,646.55

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Solution

The fourth proportional to 79,455.93, 109,649.22 and 43,646.55 is: 60,232.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,455.93 : 109,649.22 = 43,646.55 : x
  2. Step 2: Convert to fraction form
    79,455.93/109,649.22 = 43,646.55/x
  3. Step 3: Cross multiply
    79,455.93x = 109,649.22 × 43,646.55
  4. Step 4: Simplify right side
    79,455.93x = 4,785,810,163.19
  5. Step 5: Solve for x
    x = 4,785,810,163.19/79,455.93
  6. Step 6: Final answer
    x = 60,232.26

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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.