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Finding the Fourth Proportional to 132,240.65, 198,318.84 and 43,473.69

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Solution

The fourth proportional to 132,240.65, 198,318.84 and 43,473.69 is: 65,196.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,240.65 : 198,318.84 = 43,473.69 : x
  2. Step 2: Convert to fraction form
    132,240.65/198,318.84 = 43,473.69/x
  3. Step 3: Cross multiply
    132,240.65x = 198,318.84 × 43,473.69
  4. Step 4: Simplify right side
    132,240.65x = 8,621,651,771.32
  5. Step 5: Solve for x
    x = 8,621,651,771.32/132,240.65
  6. Step 6: Final answer
    x = 65,196.69

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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.