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Finding the Fourth Proportional to 79,603.41, 109,851.51 and 43,791.30

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Solution

The fourth proportional to 79,603.41, 109,851.51 and 43,791.30 is: 60,431.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,603.41 : 109,851.51 = 43,791.30 : x
  2. Step 2: Convert to fraction form
    79,603.41/109,851.51 = 43,791.30/x
  3. Step 3: Cross multiply
    79,603.41x = 109,851.51 × 43,791.30
  4. Step 4: Simplify right side
    79,603.41x = 4,810,540,429.86
  5. Step 5: Solve for x
    x = 4,810,540,429.86/79,603.41
  6. Step 6: Final answer
    x = 60,431.34

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1.5x scale

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.