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Finding the Fourth Proportional to 79,789.40, 110,101.26 and 45,789.75

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Solution

The fourth proportional to 79,789.40, 110,101.26 and 45,789.75 is: 63,185.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,789.40 : 110,101.26 = 45,789.75 : x
  2. Step 2: Convert to fraction form
    79,789.40/110,101.26 = 45,789.75/x
  3. Step 3: Cross multiply
    79,789.40x = 110,101.26 × 45,789.75
  4. Step 4: Simplify right side
    79,789.40x = 5,041,508,941.14
  5. Step 5: Solve for x
    x = 5,041,508,941.14/79,789.40
  6. Step 6: Final answer
    x = 63,185.20

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.