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Finding the Fourth Proportional to 299,485,200.60, 449,227,800.90 and 84,074,448.60

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Solution

The fourth proportional to 299,485,200.60, 449,227,800.90 and 84,074,448.60 is: 126,111,672.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,485,200.60 : 449,227,800.90 = 84,074,448.60 : x
  2. Step 2: Convert to fraction form
    299,485,200.60/449,227,800.90 = 84,074,448.60/x
  3. Step 3: Cross multiply
    299,485,200.60x = 449,227,800.90 × 84,074,448.60
  4. Step 4: Simplify right side
    299,485,200.60x = 37,768,579,656,458,080
  5. Step 5: Solve for x
    x = 37,768,579,656,458,080/299,485,200.60
  6. Step 6: Final answer
    x = 126,111,672.90

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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.