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Finding the Fourth Proportional to 132,219.60, 198,354.54 and 43,498.68

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Solution

The fourth proportional to 132,219.60, 198,354.54 and 43,498.68 is: 65,256.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,219.60 : 198,354.54 = 43,498.68 : x
  2. Step 2: Convert to fraction form
    132,219.60/198,354.54 = 43,498.68/x
  3. Step 3: Cross multiply
    132,219.60x = 198,354.54 × 43,498.68
  4. Step 4: Simplify right side
    132,219.60x = 8,628,160,662.01
  5. Step 5: Solve for x
    x = 8,628,160,662.01/132,219.60
  6. Step 6: Final answer
    x = 65,256.29

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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.