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Finding the Fourth Proportional to 515,169.73, 772,209.19 and 173,287.69

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Solution

The fourth proportional to 515,169.73, 772,209.19 and 173,287.69 is: 259,748.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,169.73 : 772,209.19 = 173,287.69 : x
  2. Step 2: Convert to fraction form
    515,169.73/772,209.19 = 173,287.69/x
  3. Step 3: Cross multiply
    515,169.73x = 772,209.19 × 173,287.69
  4. Step 4: Simplify right side
    515,169.73x = 133,814,346,731.87
  5. Step 5: Solve for x
    x = 133,814,346,731.87/515,169.73
  6. Step 6: Final answer
    x = 259,748.08

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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.