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Finding the Fourth Proportional to 394,955.40, 591,896.14 and 167,061.50

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Solution

The fourth proportional to 394,955.40, 591,896.14 and 167,061.50 is: 250,365.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,955.40 : 591,896.14 = 167,061.50 : x
  2. Step 2: Convert to fraction form
    394,955.40/591,896.14 = 167,061.50/x
  3. Step 3: Cross multiply
    394,955.40x = 591,896.14 × 167,061.50
  4. Step 4: Simplify right side
    394,955.40x = 98,883,056,992.61
  5. Step 5: Solve for x
    x = 98,883,056,992.61/394,955.40
  6. Step 6: Final answer
    x = 250,365.12

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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.