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Finding the Fourth Proportional to 270,486.20, 405,766.22 and 112,677.75

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Solution

The fourth proportional to 270,486.20, 405,766.22 and 112,677.75 is: 169,032.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,486.20 : 405,766.22 = 112,677.75 : x
  2. Step 2: Convert to fraction form
    270,486.20/405,766.22 = 112,677.75/x
  3. Step 3: Cross multiply
    270,486.20x = 405,766.22 × 112,677.75
  4. Step 4: Simplify right side
    270,486.20x = 45,720,824,132.22
  5. Step 5: Solve for x
    x = 45,720,824,132.22/270,486.20
  6. Step 6: Final answer
    x = 169,032.00

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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.