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Finding the Fourth Proportional to 436,368.76, 654,552.06 and 120,824.62

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Solution

The fourth proportional to 436,368.76, 654,552.06 and 120,824.62 is: 181,236.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,368.76 : 654,552.06 = 120,824.62 : x
  2. Step 2: Convert to fraction form
    436,368.76/654,552.06 = 120,824.62/x
  3. Step 3: Cross multiply
    436,368.76x = 654,552.06 × 120,824.62
  4. Step 4: Simplify right side
    436,368.76x = 79,086,003,919.72
  5. Step 5: Solve for x
    x = 79,086,003,919.72/436,368.76
  6. Step 6: Final answer
    x = 181,236.63

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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.