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Finding the Fourth Proportional to 191,408.36, 264,084.08 and 108,608.76

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Solution

The fourth proportional to 191,408.36, 264,084.08 and 108,608.76 is: 149,846.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,408.36 : 264,084.08 = 108,608.76 : x
  2. Step 2: Convert to fraction form
    191,408.36/264,084.08 = 108,608.76/x
  3. Step 3: Cross multiply
    191,408.36x = 264,084.08 × 108,608.76
  4. Step 4: Simplify right side
    191,408.36x = 28,681,844,464.54
  5. Step 5: Solve for x
    x = 28,681,844,464.54/191,408.36
  6. Step 6: Final answer
    x = 149,846.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.