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Finding the Fourth Proportional to 47,072,998.68, 64,978,359.62 and 35,346,143.30

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Solution

The fourth proportional to 47,072,998.68, 64,978,359.62 and 35,346,143.30 is: 48,790,909.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,072,998.68 : 64,978,359.62 = 35,346,143.30 : x
  2. Step 2: Convert to fraction form
    47,072,998.68/64,978,359.62 = 35,346,143.30/x
  3. Step 3: Cross multiply
    47,072,998.68x = 64,978,359.62 × 35,346,143.30
  4. Step 4: Simplify right side
    47,072,998.68x = 2,296,734,410,527,453.50
  5. Step 5: Solve for x
    x = 2,296,734,410,527,453.50/47,072,998.68
  6. Step 6: Final answer
    x = 48,790,909.33

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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.