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Finding the Fourth Proportional to 267,648,722.88, 401,475,853.99 and 80,904,216.74

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Solution

The fourth proportional to 267,648,722.88, 401,475,853.99 and 80,904,216.74 is: 121,357,162.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,648,722.88 : 401,475,853.99 = 80,904,216.74 : x
  2. Step 2: Convert to fraction form
    267,648,722.88/401,475,853.99 = 80,904,216.74/x
  3. Step 3: Cross multiply
    267,648,722.88x = 401,475,853.99 × 80,904,216.74
  4. Step 4: Simplify right side
    267,648,722.88x = 32,481,089,505,076,176
  5. Step 5: Solve for x
    x = 32,481,089,505,076,176/267,648,722.88
  6. Step 6: Final answer
    x = 121,357,162.31

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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.