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Finding the Fourth Proportional to 99,796.71, 149,741.76 and 43,629.54

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Solution

The fourth proportional to 99,796.71, 149,741.76 and 43,629.54 is: 65,464.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,796.71 : 149,741.76 = 43,629.54 : x
  2. Step 2: Convert to fraction form
    99,796.71/149,741.76 = 43,629.54/x
  3. Step 3: Cross multiply
    99,796.71x = 149,741.76 × 43,629.54
  4. Step 4: Simplify right side
    99,796.71x = 6,533,164,107.59
  5. Step 5: Solve for x
    x = 6,533,164,107.59/99,796.71
  6. Step 6: Final answer
    x = 65,464.72

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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.