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Finding the Fourth Proportional to 89,049.34, 133,623.24 and 49,628.68

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Solution

The fourth proportional to 89,049.34, 133,623.24 and 49,628.68 is: 74,470.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,049.34 : 133,623.24 = 49,628.68 : x
  2. Step 2: Convert to fraction form
    89,049.34/133,623.24 = 49,628.68/x
  3. Step 3: Cross multiply
    89,049.34x = 133,623.24 × 49,628.68
  4. Step 4: Simplify right side
    89,049.34x = 6,631,545,018.52
  5. Step 5: Solve for x
    x = 6,631,545,018.52/89,049.34
  6. Step 6: Final answer
    x = 74,470.46

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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.