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Finding the Fourth Proportional to 99,073.43, 148,356.41 and 54,650.81

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Solution

The fourth proportional to 99,073.43, 148,356.41 and 54,650.81 is: 81,836.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,073.43 : 148,356.41 = 54,650.81 : x
  2. Step 2: Convert to fraction form
    99,073.43/148,356.41 = 54,650.81/x
  3. Step 3: Cross multiply
    99,073.43x = 148,356.41 × 54,650.81
  4. Step 4: Simplify right side
    99,073.43x = 8,107,796,960.16
  5. Step 5: Solve for x
    x = 8,107,796,960.16/99,073.43
  6. Step 6: Final answer
    x = 81,836.24

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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.