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Finding the Fourth Proportional to 190,909.20, 286,363.80 and 182,161.20

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Solution

The fourth proportional to 190,909.20, 286,363.80 and 182,161.20 is: 273,241.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,909.20 : 286,363.80 = 182,161.20 : x
  2. Step 2: Convert to fraction form
    190,909.20/286,363.80 = 182,161.20/x
  3. Step 3: Cross multiply
    190,909.20x = 286,363.80 × 182,161.20
  4. Step 4: Simplify right side
    190,909.20x = 52,164,373,444.56
  5. Step 5: Solve for x
    x = 52,164,373,444.56/190,909.20
  6. Step 6: Final answer
    x = 273,241.80

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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.