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Finding the Fourth Proportional to 394,104.47, 591,103.13 and 154,051.34

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Solution

The fourth proportional to 394,104.47, 591,103.13 and 154,051.34 is: 231,056.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,104.47 : 591,103.13 = 154,051.34 : x
  2. Step 2: Convert to fraction form
    394,104.47/591,103.13 = 154,051.34/x
  3. Step 3: Cross multiply
    394,104.47x = 591,103.13 × 154,051.34
  4. Step 4: Simplify right side
    394,104.47x = 91,060,225,528.92
  5. Step 5: Solve for x
    x = 91,060,225,528.92/394,104.47
  6. Step 6: Final answer
    x = 231,056.06

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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.