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Finding the Fourth Proportional to 79,168.19, 109,249.16 and 43,358.49

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Solution

The fourth proportional to 79,168.19, 109,249.16 and 43,358.49 is: 59,833.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,168.19 : 109,249.16 = 43,358.49 : x
  2. Step 2: Convert to fraction form
    79,168.19/109,249.16 = 43,358.49/x
  3. Step 3: Cross multiply
    79,168.19x = 109,249.16 × 43,358.49
  4. Step 4: Simplify right side
    79,168.19x = 4,736,878,394.58
  5. Step 5: Solve for x
    x = 4,736,878,394.58/79,168.19
  6. Step 6: Final answer
    x = 59,833.11

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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.