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Finding the Fourth Proportional to 270,605.89, 405,690.09 and 112,952.35

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Solution

The fourth proportional to 270,605.89, 405,690.09 and 112,952.35 is: 169,337.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,605.89 : 405,690.09 = 112,952.35 : x
  2. Step 2: Convert to fraction form
    270,605.89/405,690.09 = 112,952.35/x
  3. Step 3: Cross multiply
    270,605.89x = 405,690.09 × 112,952.35
  4. Step 4: Simplify right side
    270,605.89x = 45,823,649,037.21
  5. Step 5: Solve for x
    x = 45,823,649,037.21/270,605.89
  6. Step 6: Final answer
    x = 169,337.22

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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.