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Finding the Fourth Proportional to 353,451.25, 530,097.02 and 100,726.31

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Solution

The fourth proportional to 353,451.25, 530,097.02 and 100,726.31 is: 151,066.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,451.25 : 530,097.02 = 100,726.31 : x
  2. Step 2: Convert to fraction form
    353,451.25/530,097.02 = 100,726.31/x
  3. Step 3: Cross multiply
    353,451.25x = 530,097.02 × 100,726.31
  4. Step 4: Simplify right side
    353,451.25x = 53,394,716,616.68
  5. Step 5: Solve for x
    x = 53,394,716,616.68/353,451.25
  6. Step 6: Final answer
    x = 151,066.71

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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.