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Finding the Fourth Proportional to 84,615.11, 126,926.17 and 69,796.43

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Solution

The fourth proportional to 84,615.11, 126,926.17 and 69,796.43 is: 104,697.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,615.11 : 126,926.17 = 69,796.43 : x
  2. Step 2: Convert to fraction form
    84,615.11/126,926.17 = 69,796.43/x
  3. Step 3: Cross multiply
    84,615.11x = 126,926.17 × 69,796.43
  4. Step 4: Simplify right side
    84,615.11x = 8,858,992,730.45
  5. Step 5: Solve for x
    x = 8,858,992,730.45/84,615.11
  6. Step 6: Final answer
    x = 104,697.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.