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Finding the Fourth Proportional to 266,751,918.56, 399,714,666.06 and 185,029,677.20

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Solution

The fourth proportional to 266,751,918.56, 399,714,666.06 and 185,029,677.20 is: 277,257,895.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,751,918.56 : 399,714,666.06 = 185,029,677.20 : x
  2. Step 2: Convert to fraction form
    266,751,918.56/399,714,666.06 = 185,029,677.20/x
  3. Step 3: Cross multiply
    266,751,918.56x = 399,714,666.06 × 185,029,677.20
  4. Step 4: Simplify right side
    266,751,918.56x = 73,959,075,634,878,896
  5. Step 5: Solve for x
    x = 73,959,075,634,878,896/266,751,918.56
  6. Step 6: Final answer
    x = 277,257,895.78

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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.