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Finding the Fourth Proportional to 168,791.12, 253,242.12 and 69,035.24

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Solution

The fourth proportional to 168,791.12, 253,242.12 and 69,035.24 is: 103,575.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,791.12 : 253,242.12 = 69,035.24 : x
  2. Step 2: Convert to fraction form
    168,791.12/253,242.12 = 69,035.24/x
  3. Step 3: Cross multiply
    168,791.12x = 253,242.12 × 69,035.24
  4. Step 4: Simplify right side
    168,791.12x = 17,482,630,532.31
  5. Step 5: Solve for x
    x = 17,482,630,532.31/168,791.12
  6. Step 6: Final answer
    x = 103,575.53

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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.