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Finding the Fourth Proportional to 79,296.96, 109,421.92 and 45,773.76

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Solution

The fourth proportional to 79,296.96, 109,421.92 and 45,773.76 is: 63,163.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,296.96 : 109,421.92 = 45,773.76 : x
  2. Step 2: Convert to fraction form
    79,296.96/109,421.92 = 45,773.76/x
  3. Step 3: Cross multiply
    79,296.96x = 109,421.92 × 45,773.76
  4. Step 4: Simplify right side
    79,296.96x = 5,008,652,704.82
  5. Step 5: Solve for x
    x = 5,008,652,704.82/79,296.96
  6. Step 6: Final answer
    x = 63,163.24

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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.