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Finding the Fourth Proportional to 79,277.49, 109,402.10 and 43,467.42

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Solution

The fourth proportional to 79,277.49, 109,402.10 and 43,467.42 is: 59,984.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,277.49 : 109,402.10 = 43,467.42 : x
  2. Step 2: Convert to fraction form
    79,277.49/109,402.10 = 43,467.42/x
  3. Step 3: Cross multiply
    79,277.49x = 109,402.10 × 43,467.42
  4. Step 4: Simplify right side
    79,277.49x = 4,755,427,029.58
  5. Step 5: Solve for x
    x = 4,755,427,029.58/79,277.49
  6. Step 6: Final answer
    x = 59,984.58

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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.