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Finding the Fourth Proportional to 266,751,920.56, 399,714,669.06 and 185,029,679.20

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Solution

The fourth proportional to 266,751,920.56, 399,714,669.06 and 185,029,679.20 is: 277,257,898.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,751,920.56 : 399,714,669.06 = 185,029,679.20 : x
  2. Step 2: Convert to fraction form
    266,751,920.56/399,714,669.06 = 185,029,679.20/x
  3. Step 3: Cross multiply
    266,751,920.56x = 399,714,669.06 × 185,029,679.20
  4. Step 4: Simplify right side
    266,751,920.56x = 73,959,076,987,705,968
  5. Step 5: Solve for x
    x = 73,959,076,987,705,968/266,751,920.56
  6. Step 6: Final answer
    x = 277,257,898.77

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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.