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Finding the Fourth Proportional to 66,494.79, 99,595.62 and 54,965.79

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Solution

The fourth proportional to 66,494.79, 99,595.62 and 54,965.79 is: 82,327.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,494.79 : 99,595.62 = 54,965.79 : x
  2. Step 2: Convert to fraction form
    66,494.79/99,595.62 = 54,965.79/x
  3. Step 3: Cross multiply
    66,494.79x = 99,595.62 × 54,965.79
  4. Step 4: Simplify right side
    66,494.79x = 5,474,351,933.84
  5. Step 5: Solve for x
    x = 5,474,351,933.84/66,494.79
  6. Step 6: Final answer
    x = 82,327.53

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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.