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Finding the Fourth Proportional to 218,242.62, 327,362.64 and 56,136.42

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Solution

The fourth proportional to 218,242.62, 327,362.64 and 56,136.42 is: 84,204.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,242.62 : 327,362.64 = 56,136.42 : x
  2. Step 2: Convert to fraction form
    218,242.62/327,362.64 = 56,136.42/x
  3. Step 3: Cross multiply
    218,242.62x = 327,362.64 × 56,136.42
  4. Step 4: Simplify right side
    218,242.62x = 18,376,966,651.35
  5. Step 5: Solve for x
    x = 18,376,966,651.35/218,242.62
  6. Step 6: Final answer
    x = 84,204.30

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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.