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Finding the Fourth Proportional to 262,875.56, 394,144.90 and 111,031.47

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Solution

The fourth proportional to 262,875.56, 394,144.90 and 111,031.47 is: 166,476.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,875.56 : 394,144.90 = 111,031.47 : x
  2. Step 2: Convert to fraction form
    262,875.56/394,144.90 = 111,031.47/x
  3. Step 3: Cross multiply
    262,875.56x = 394,144.90 × 111,031.47
  4. Step 4: Simplify right side
    262,875.56x = 43,762,487,449.28
  5. Step 5: Solve for x
    x = 43,762,487,449.28/262,875.56
  6. Step 6: Final answer
    x = 166,476.06

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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.