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Finding the Fourth Proportional to 79,493.55, 109,645.56 and 67,473.96

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Solution

The fourth proportional to 79,493.55, 109,645.56 and 67,473.96 is: 93,066.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,493.55 : 109,645.56 = 67,473.96 : x
  2. Step 2: Convert to fraction form
    79,493.55/109,645.56 = 67,473.96/x
  3. Step 3: Cross multiply
    79,493.55x = 109,645.56 × 67,473.96
  4. Step 4: Simplify right side
    79,493.55x = 7,398,220,129.62
  5. Step 5: Solve for x
    x = 7,398,220,129.62/79,493.55
  6. Step 6: Final answer
    x = 93,066.92

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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.