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Finding the Fourth Proportional to 394,259.01, 591,407.96 and 109,949.01

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Solution

The fourth proportional to 394,259.01, 591,407.96 and 109,949.01 is: 164,928.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,259.01 : 591,407.96 = 109,949.01 : x
  2. Step 2: Convert to fraction form
    394,259.01/591,407.96 = 109,949.01/x
  3. Step 3: Cross multiply
    394,259.01x = 591,407.96 × 109,949.01
  4. Step 4: Simplify right side
    394,259.01x = 65,024,719,158.37
  5. Step 5: Solve for x
    x = 65,024,719,158.37/394,259.01
  6. Step 6: Final answer
    x = 164,928.94

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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.