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Finding the Fourth Proportional to 55,858.56, 76,994.82 and 45,769.20

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Solution

The fourth proportional to 55,858.56, 76,994.82 and 45,769.20 is: 63,087.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,858.56 : 76,994.82 = 45,769.20 : x
  2. Step 2: Convert to fraction form
    55,858.56/76,994.82 = 45,769.20/x
  3. Step 3: Cross multiply
    55,858.56x = 76,994.82 × 45,769.20
  4. Step 4: Simplify right side
    55,858.56x = 3,523,991,315.54
  5. Step 5: Solve for x
    x = 3,523,991,315.54/55,858.56
  6. Step 6: Final answer
    x = 63,087.76

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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.