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Finding the Fourth Proportional to 436,323.57, 654,493.55 and 136,797.51

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Solution

The fourth proportional to 436,323.57, 654,493.55 and 136,797.51 is: 205,198.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,323.57 : 654,493.55 = 136,797.51 : x
  2. Step 2: Convert to fraction form
    436,323.57/654,493.55 = 136,797.51/x
  3. Step 3: Cross multiply
    436,323.57x = 654,493.55 × 136,797.51
  4. Step 4: Simplify right side
    436,323.57x = 89,533,087,951.06
  5. Step 5: Solve for x
    x = 89,533,087,951.06/436,323.57
  6. Step 6: Final answer
    x = 205,198.83

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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.