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Finding the Fourth Proportional to 188,194,978.89, 282,182,858.62 and 73,045,000.22

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Solution

The fourth proportional to 188,194,978.89, 282,182,858.62 and 73,045,000.22 is: 109,524,956.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,194,978.89 : 282,182,858.62 = 73,045,000.22 : x
  2. Step 2: Convert to fraction form
    188,194,978.89/282,182,858.62 = 73,045,000.22/x
  3. Step 3: Cross multiply
    188,194,978.89x = 282,182,858.62 × 73,045,000.22
  4. Step 4: Simplify right side
    188,194,978.89x = 20,612,046,969,589,908
  5. Step 5: Solve for x
    x = 20,612,046,969,589,908/188,194,978.89
  6. Step 6: Final answer
    x = 109,524,956.99

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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.