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Finding the Fourth Proportional to 374,415.20, 561,695.70 and 161,182.70

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Solution

The fourth proportional to 374,415.20, 561,695.70 and 161,182.70 is: 241,805.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,415.20 : 561,695.70 = 161,182.70 : x
  2. Step 2: Convert to fraction form
    374,415.20/561,695.70 = 161,182.70/x
  3. Step 3: Cross multiply
    374,415.20x = 561,695.70 × 161,182.70
  4. Step 4: Simplify right side
    374,415.20x = 90,535,629,504.39
  5. Step 5: Solve for x
    x = 90,535,629,504.39/374,415.20
  6. Step 6: Final answer
    x = 241,805.43

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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.