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Finding the Fourth Proportional to 99,178.92, 148,768.38 and 25,306.92

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Solution

The fourth proportional to 99,178.92, 148,768.38 and 25,306.92 is: 37,960.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,178.92 : 148,768.38 = 25,306.92 : x
  2. Step 2: Convert to fraction form
    99,178.92/148,768.38 = 25,306.92/x
  3. Step 3: Cross multiply
    99,178.92x = 148,768.38 × 25,306.92
  4. Step 4: Simplify right side
    99,178.92x = 3,764,869,491.19
  5. Step 5: Solve for x
    x = 3,764,869,491.19/99,178.92
  6. Step 6: Final answer
    x = 37,960.38

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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.