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Finding the Fourth Proportional to 99,249.94, 148,874.55 and 43,082.72

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Solution

The fourth proportional to 99,249.94, 148,874.55 and 43,082.72 is: 64,623.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,249.94 : 148,874.55 = 43,082.72 : x
  2. Step 2: Convert to fraction form
    99,249.94/148,874.55 = 43,082.72/x
  3. Step 3: Cross multiply
    99,249.94x = 148,874.55 × 43,082.72
  4. Step 4: Simplify right side
    99,249.94x = 6,413,920,180.59
  5. Step 5: Solve for x
    x = 6,413,920,180.59/99,249.94
  6. Step 6: Final answer
    x = 64,623.92

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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.