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Finding the Fourth Proportional to 146,155.42, 201,694.44 and 79,087.42

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Solution

The fourth proportional to 146,155.42, 201,694.44 and 79,087.42 is: 109,140.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,155.42 : 201,694.44 = 79,087.42 : x
  2. Step 2: Convert to fraction form
    146,155.42/201,694.44 = 79,087.42/x
  3. Step 3: Cross multiply
    146,155.42x = 201,694.44 × 79,087.42
  4. Step 4: Simplify right side
    146,155.42x = 15,951,492,887.94
  5. Step 5: Solve for x
    x = 15,951,492,887.94/146,155.42
  6. Step 6: Final answer
    x = 109,140.62

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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.