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Finding the Fourth Proportional to 436,367.76, 654,550.56 and 120,823.62

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Solution

The fourth proportional to 436,367.76, 654,550.56 and 120,823.62 is: 181,235.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,367.76 : 654,550.56 = 120,823.62 : x
  2. Step 2: Convert to fraction form
    436,367.76/654,550.56 = 120,823.62/x
  3. Step 3: Cross multiply
    436,367.76x = 654,550.56 × 120,823.62
  4. Step 4: Simplify right side
    436,367.76x = 79,085,168,132.23
  5. Step 5: Solve for x
    x = 79,085,168,132.23/436,367.76
  6. Step 6: Final answer
    x = 181,235.13

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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.