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Finding the Fourth Proportional to 73,160.79, 109,733.30 and 49,619.45

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Solution

The fourth proportional to 73,160.79, 109,733.30 and 49,619.45 is: 74,423.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,160.79 : 109,733.30 = 49,619.45 : x
  2. Step 2: Convert to fraction form
    73,160.79/109,733.30 = 49,619.45/x
  3. Step 3: Cross multiply
    73,160.79x = 109,733.30 × 49,619.45
  4. Step 4: Simplify right side
    73,160.79x = 5,444,906,204.99
  5. Step 5: Solve for x
    x = 5,444,906,204.99/73,160.79
  6. Step 6: Final answer
    x = 74,423.83

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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.