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Finding the Fourth Proportional to 66,560,456.67, 91,856,978.37 and 37,192,502.13

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Solution

The fourth proportional to 66,560,456.67, 91,856,978.37 and 37,192,502.13 is: 51,327,635.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,560,456.67 : 91,856,978.37 = 37,192,502.13 : x
  2. Step 2: Convert to fraction form
    66,560,456.67/91,856,978.37 = 37,192,502.13/x
  3. Step 3: Cross multiply
    66,560,456.67x = 91,856,978.37 × 37,192,502.13
  4. Step 4: Simplify right side
    66,560,456.67x = 3,416,390,863,681,589.50
  5. Step 5: Solve for x
    x = 3,416,390,863,681,589.50/66,560,456.67
  6. Step 6: Final answer
    x = 51,327,635.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.