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Finding the Fourth Proportional to 270,428.25, 404,811.99 and 170,118.77

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Solution

The fourth proportional to 270,428.25, 404,811.99 and 170,118.77 is: 254,655.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,428.25 : 404,811.99 = 170,118.77 : x
  2. Step 2: Convert to fraction form
    270,428.25/404,811.99 = 170,118.77/x
  3. Step 3: Cross multiply
    270,428.25x = 404,811.99 × 170,118.77
  4. Step 4: Simplify right side
    270,428.25x = 68,866,118,832.08
  5. Step 5: Solve for x
    x = 68,866,118,832.08/270,428.25
  6. Step 6: Final answer
    x = 254,655.79

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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.