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Finding the Fourth Proportional to 357,744.40, 536,616.60 and 161,136.40

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Solution

The fourth proportional to 357,744.40, 536,616.60 and 161,136.40 is: 241,704.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,744.40 : 536,616.60 = 161,136.40 : x
  2. Step 2: Convert to fraction form
    357,744.40/536,616.60 = 161,136.40/x
  3. Step 3: Cross multiply
    357,744.40x = 536,616.60 × 161,136.40
  4. Step 4: Simplify right side
    357,744.40x = 86,468,467,104.24
  5. Step 5: Solve for x
    x = 86,468,467,104.24/357,744.40
  6. Step 6: Final answer
    x = 241,704.60

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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.