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Finding the Fourth Proportional to 79,473.16, 109,672.95 and 43,661.98

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Solution

The fourth proportional to 79,473.16, 109,672.95 and 43,661.98 is: 60,253.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,473.16 : 109,672.95 = 43,661.98 : x
  2. Step 2: Convert to fraction form
    79,473.16/109,672.95 = 43,661.98/x
  3. Step 3: Cross multiply
    79,473.16x = 109,672.95 × 43,661.98
  4. Step 4: Simplify right side
    79,473.16x = 4,788,538,149.44
  5. Step 5: Solve for x
    x = 4,788,538,149.44/79,473.16
  6. Step 6: Final answer
    x = 60,253.53

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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.