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Finding the Fourth Proportional to 132,570.71, 198,887.20 and 43,824.21

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Solution

The fourth proportional to 132,570.71, 198,887.20 and 43,824.21 is: 65,746.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,570.71 : 198,887.20 = 43,824.21 : x
  2. Step 2: Convert to fraction form
    132,570.71/198,887.20 = 43,824.21/x
  3. Step 3: Cross multiply
    132,570.71x = 198,887.20 × 43,824.21
  4. Step 4: Simplify right side
    132,570.71x = 8,716,073,563.72
  5. Step 5: Solve for x
    x = 8,716,073,563.72/132,570.71
  6. Step 6: Final answer
    x = 65,746.60

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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.