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Finding the Fourth Proportional to 71,882,707.60, 107,824,061.40 and 49,207,891.60

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Solution

The fourth proportional to 71,882,707.60, 107,824,061.40 and 49,207,891.60 is: 73,811,837.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,882,707.60 : 107,824,061.40 = 49,207,891.60 : x
  2. Step 2: Convert to fraction form
    71,882,707.60/107,824,061.40 = 49,207,891.60/x
  3. Step 3: Cross multiply
    71,882,707.60x = 107,824,061.40 × 49,207,891.60
  4. Step 4: Simplify right side
    71,882,707.60x = 5,305,794,725,242,945
  5. Step 5: Solve for x
    x = 5,305,794,725,242,945/71,882,707.60
  6. Step 6: Final answer
    x = 73,811,837.40

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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.