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Finding the Fourth Proportional to 183,778.76, 275,685.15 and 71,467.43

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Solution

The fourth proportional to 183,778.76, 275,685.15 and 71,467.43 is: 107,207.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,778.76 : 275,685.15 = 71,467.43 : x
  2. Step 2: Convert to fraction form
    183,778.76/275,685.15 = 71,467.43/x
  3. Step 3: Cross multiply
    183,778.76x = 275,685.15 × 71,467.43
  4. Step 4: Simplify right side
    183,778.76x = 19,702,507,781.24
  5. Step 5: Solve for x
    x = 19,702,507,781.24/183,778.76
  6. Step 6: Final answer
    x = 107,207.76

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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.