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Finding the Fourth Proportional to 68,152.90, 102,195.47 and 43,174.02

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Solution

The fourth proportional to 68,152.90, 102,195.47 and 43,174.02 is: 64,739.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,152.90 : 102,195.47 = 43,174.02 : x
  2. Step 2: Convert to fraction form
    68,152.90/102,195.47 = 43,174.02/x
  3. Step 3: Cross multiply
    68,152.90x = 102,195.47 × 43,174.02
  4. Step 4: Simplify right side
    68,152.90x = 4,412,189,265.69
  5. Step 5: Solve for x
    x = 4,412,189,265.69/68,152.90
  6. Step 6: Final answer
    x = 64,739.57

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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.