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Finding the Fourth Proportional to 110,868.71, 166,344.39 and 66,527.28

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Solution

The fourth proportional to 110,868.71, 166,344.39 and 66,527.28 is: 99,815.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,868.71 : 166,344.39 = 66,527.28 : x
  2. Step 2: Convert to fraction form
    110,868.71/166,344.39 = 66,527.28/x
  3. Step 3: Cross multiply
    110,868.71x = 166,344.39 × 66,527.28
  4. Step 4: Simplify right side
    110,868.71x = 11,066,439,809.96
  5. Step 5: Solve for x
    x = 11,066,439,809.96/110,868.71
  6. Step 6: Final answer
    x = 99,815.72

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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.