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Finding the Fourth Proportional to 168,891.04, 253,193.49 and 74,049.36

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Solution

The fourth proportional to 168,891.04, 253,193.49 and 74,049.36 is: 111,011.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,891.04 : 253,193.49 = 74,049.36 : x
  2. Step 2: Convert to fraction form
    168,891.04/253,193.49 = 74,049.36/x
  3. Step 3: Cross multiply
    168,891.04x = 253,193.49 × 74,049.36
  4. Step 4: Simplify right side
    168,891.04x = 18,748,814,941.19
  5. Step 5: Solve for x
    x = 18,748,814,941.19/168,891.04
  6. Step 6: Final answer
    x = 111,011.31

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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.