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Finding the Fourth Proportional to 328,793.80, 493,044.90 and 151,355.20

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Solution

The fourth proportional to 328,793.80, 493,044.90 and 151,355.20 is: 226,965.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,793.80 : 493,044.90 = 151,355.20 : x
  2. Step 2: Convert to fraction form
    328,793.80/493,044.90 = 151,355.20/x
  3. Step 3: Cross multiply
    328,793.80x = 493,044.90 × 151,355.20
  4. Step 4: Simplify right side
    328,793.80x = 74,624,909,448.48
  5. Step 5: Solve for x
    x = 74,624,909,448.48/328,793.80
  6. Step 6: Final answer
    x = 226,965.68

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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.