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Finding the Fourth Proportional to 166,604.40, 229,912.20 and 91,152

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Solution

The fourth proportional to 166,604.40, 229,912.20 and 91,152 is: 125,788.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,604.40 : 229,912.20 = 91,152 : x
  2. Step 2: Convert to fraction form
    166,604.40/229,912.20 = 91,152/x
  3. Step 3: Cross multiply
    166,604.40x = 229,912.20 × 91,152
  4. Step 4: Simplify right side
    166,604.40x = 20,956,956,854.40
  5. Step 5: Solve for x
    x = 20,956,956,854.40/166,604.40
  6. Step 6: Final answer
    x = 125,788.74

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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.