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Finding the Fourth Proportional to 291,836.82, 437,768.34 and 89,418.09

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Solution

The fourth proportional to 291,836.82, 437,768.34 and 89,418.09 is: 134,131.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,836.82 : 437,768.34 = 89,418.09 : x
  2. Step 2: Convert to fraction form
    291,836.82/437,768.34 = 89,418.09/x
  3. Step 3: Cross multiply
    291,836.82x = 437,768.34 × 89,418.09
  4. Step 4: Simplify right side
    291,836.82x = 39,144,408,378.18
  5. Step 5: Solve for x
    x = 39,144,408,378.18/291,836.82
  6. Step 6: Final answer
    x = 134,131.15

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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.