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Finding the Fourth Proportional to 73,085.08, 109,561.68 and 26,305

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Solution

The fourth proportional to 73,085.08, 109,561.68 and 26,305 is: 39,433.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,085.08 : 109,561.68 = 26,305 : x
  2. Step 2: Convert to fraction form
    73,085.08/109,561.68 = 26,305/x
  3. Step 3: Cross multiply
    73,085.08x = 109,561.68 × 26,305
  4. Step 4: Simplify right side
    73,085.08x = 2,882,019,992.40
  5. Step 5: Solve for x
    x = 2,882,019,992.40/73,085.08
  6. Step 6: Final answer
    x = 39,433.77

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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.