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Finding the Fourth Proportional to 98,784,399.82, 136,322,471.74 and 55,324,335.82

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Solution

The fourth proportional to 98,784,399.82, 136,322,471.74 and 55,324,335.82 is: 76,347,583.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,784,399.82 : 136,322,471.74 = 55,324,335.82 : x
  2. Step 2: Convert to fraction form
    98,784,399.82/136,322,471.74 = 55,324,335.82/x
  3. Step 3: Cross multiply
    98,784,399.82x = 136,322,471.74 × 55,324,335.82
  4. Step 4: Simplify right side
    98,784,399.82x = 7,541,950,205,674,608
  5. Step 5: Solve for x
    x = 7,541,950,205,674,608/98,784,399.82
  6. Step 6: Final answer
    x = 76,347,583.42

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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.