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Finding the Fourth Proportional to 168,014.90, 252,022.35 and 43,355.90

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Solution

The fourth proportional to 168,014.90, 252,022.35 and 43,355.90 is: 65,033.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,014.90 : 252,022.35 = 43,355.90 : x
  2. Step 2: Convert to fraction form
    168,014.90/252,022.35 = 43,355.90/x
  3. Step 3: Cross multiply
    168,014.90x = 252,022.35 × 43,355.90
  4. Step 4: Simplify right side
    168,014.90x = 10,926,655,804.37
  5. Step 5: Solve for x
    x = 10,926,655,804.37/168,014.90
  6. Step 6: Final answer
    x = 65,033.85

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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.