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Finding the Fourth Proportional to 132,213.88, 198,345.42 and 43,470.89

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Solution

The fourth proportional to 132,213.88, 198,345.42 and 43,470.89 is: 65,214.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,213.88 : 198,345.42 = 43,470.89 : x
  2. Step 2: Convert to fraction form
    132,213.88/198,345.42 = 43,470.89/x
  3. Step 3: Cross multiply
    132,213.88x = 198,345.42 × 43,470.89
  4. Step 4: Simplify right side
    132,213.88x = 8,622,250,943.10
  5. Step 5: Solve for x
    x = 8,622,250,943.10/132,213.88
  6. Step 6: Final answer
    x = 65,214.42

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1.5x scale

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.