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Finding the Fourth Proportional to 132,571.71, 198,888.70 and 43,825.21

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Solution

The fourth proportional to 132,571.71, 198,888.70 and 43,825.21 is: 65,748.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,571.71 : 198,888.70 = 43,825.21 : x
  2. Step 2: Convert to fraction form
    132,571.71/198,888.70 = 43,825.21/x
  3. Step 3: Cross multiply
    132,571.71x = 198,888.70 × 43,825.21
  4. Step 4: Simplify right side
    132,571.71x = 8,716,339,044.13
  5. Step 5: Solve for x
    x = 8,716,339,044.13/132,571.71
  6. Step 6: Final answer
    x = 65,748.11

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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.