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Finding the Fourth Proportional to 291,744.54, 437,616.87 and 92,085.09

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Solution

The fourth proportional to 291,744.54, 437,616.87 and 92,085.09 is: 138,127.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,744.54 : 437,616.87 = 92,085.09 : x
  2. Step 2: Convert to fraction form
    291,744.54/437,616.87 = 92,085.09/x
  3. Step 3: Cross multiply
    291,744.54x = 437,616.87 × 92,085.09
  4. Step 4: Simplify right side
    291,744.54x = 40,297,988,859.47
  5. Step 5: Solve for x
    x = 40,297,988,859.47/291,744.54
  6. Step 6: Final answer
    x = 138,127.65

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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.