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Finding the Fourth Proportional to 266,346,288, 399,519,440.64 and 74,870,064

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Solution

The fourth proportional to 266,346,288, 399,519,440.64 and 74,870,064 is: 112,305,098.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,346,288 : 399,519,440.64 = 74,870,064 : x
  2. Step 2: Convert to fraction form
    266,346,288/399,519,440.64 = 74,870,064/x
  3. Step 3: Cross multiply
    266,346,288x = 399,519,440.64 × 74,870,064
  4. Step 4: Simplify right side
    266,346,288x = 29,912,046,089,961,000
  5. Step 5: Solve for x
    x = 29,912,046,089,961,000/266,346,288
  6. Step 6: Final answer
    x = 112,305,098.43

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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.