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Finding the Fourth Proportional to 132,441.70, 198,662.55 and 73,246.90

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Solution

The fourth proportional to 132,441.70, 198,662.55 and 73,246.90 is: 109,870.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,441.70 : 198,662.55 = 73,246.90 : x
  2. Step 2: Convert to fraction form
    132,441.70/198,662.55 = 73,246.90/x
  3. Step 3: Cross multiply
    132,441.70x = 198,662.55 × 73,246.90
  4. Step 4: Simplify right side
    132,441.70x = 14,551,415,933.60
  5. Step 5: Solve for x
    x = 14,551,415,933.60/132,441.70
  6. Step 6: Final answer
    x = 109,870.35

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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.