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Finding the Fourth Proportional to 243,168.62, 335,571.39 and 141,219.14

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Solution

The fourth proportional to 243,168.62, 335,571.39 and 141,219.14 is: 194,881.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,168.62 : 335,571.39 = 141,219.14 : x
  2. Step 2: Convert to fraction form
    243,168.62/335,571.39 = 141,219.14/x
  3. Step 3: Cross multiply
    243,168.62x = 335,571.39 × 141,219.14
  4. Step 4: Simplify right side
    243,168.62x = 47,389,101,426.55
  5. Step 5: Solve for x
    x = 47,389,101,426.55/243,168.62
  6. Step 6: Final answer
    x = 194,881.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.