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Finding the Fourth Proportional to 47,072,996.68, 64,978,356.86 and 35,346,141.30

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Solution

The fourth proportional to 47,072,996.68, 64,978,356.86 and 35,346,141.30 is: 48,790,906.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,072,996.68 : 64,978,356.86 = 35,346,141.30 : x
  2. Step 2: Convert to fraction form
    47,072,996.68/64,978,356.86 = 35,346,141.30/x
  3. Step 3: Cross multiply
    47,072,996.68x = 64,978,356.86 × 35,346,141.30
  4. Step 4: Simplify right side
    47,072,996.68x = 2,296,734,183,015,384
  5. Step 5: Solve for x
    x = 2,296,734,183,015,384/47,072,996.68
  6. Step 6: Final answer
    x = 48,790,906.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.