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Finding the Fourth Proportional to 493,544.20, 740,389.20 and 156,616.60

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Solution

The fourth proportional to 493,544.20, 740,389.20 and 156,616.60 is: 234,948.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,544.20 : 740,389.20 = 156,616.60 : x
  2. Step 2: Convert to fraction form
    493,544.20/740,389.20 = 156,616.60/x
  3. Step 3: Cross multiply
    493,544.20x = 740,389.20 × 156,616.60
  4. Step 4: Simplify right side
    493,544.20x = 115,957,239,180.72
  5. Step 5: Solve for x
    x = 115,957,239,180.72/493,544.20
  6. Step 6: Final answer
    x = 234,948.03

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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.