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Finding the Fourth Proportional to 132,662.40, 199,028.16 and 43,929.60

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Solution

The fourth proportional to 132,662.40, 199,028.16 and 43,929.60 is: 65,905.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,662.40 : 199,028.16 = 43,929.60 : x
  2. Step 2: Convert to fraction form
    132,662.40/199,028.16 = 43,929.60/x
  3. Step 3: Cross multiply
    132,662.40x = 199,028.16 × 43,929.60
  4. Step 4: Simplify right side
    132,662.40x = 8,743,227,457.54
  5. Step 5: Solve for x
    x = 8,743,227,457.54/132,662.40
  6. Step 6: Final answer
    x = 65,905.84

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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.