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Finding the Fourth Proportional to 394,700.68, 591,910.62 and 114,159.88

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Solution

The fourth proportional to 394,700.68, 591,910.62 and 114,159.88 is: 171,199.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,700.68 : 591,910.62 = 114,159.88 : x
  2. Step 2: Convert to fraction form
    394,700.68/591,910.62 = 114,159.88/x
  3. Step 3: Cross multiply
    394,700.68x = 591,910.62 × 114,159.88
  4. Step 4: Simplify right side
    394,700.68x = 67,572,445,349.93
  5. Step 5: Solve for x
    x = 67,572,445,349.93/394,700.68
  6. Step 6: Final answer
    x = 171,199.21

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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.