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Finding the Fourth Proportional to 71,882,708.60, 107,824,062.90 and 49,207,892.60

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Solution

The fourth proportional to 71,882,708.60, 107,824,062.90 and 49,207,892.60 is: 73,811,838.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,882,708.60 : 107,824,062.90 = 49,207,892.60 : x
  2. Step 2: Convert to fraction form
    71,882,708.60/107,824,062.90 = 49,207,892.60/x
  3. Step 3: Cross multiply
    71,882,708.60x = 107,824,062.90 × 49,207,892.60
  4. Step 4: Simplify right side
    71,882,708.60x = 5,305,794,906,878,845
  5. Step 5: Solve for x
    x = 5,305,794,906,878,845/71,882,708.60
  6. Step 6: Final answer
    x = 73,811,838.90

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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.