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Finding the Fourth Proportional to 74,889,912.85, 104,987,435.75 and 74,889,912.85

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Solution

The fourth proportional to 74,889,912.85, 104,987,435.75 and 74,889,912.85 is: 104,987,435.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,889,912.85 : 104,987,435.75 = 74,889,912.85 : x
  2. Step 2: Convert to fraction form
    74,889,912.85/104,987,435.75 = 74,889,912.85/x
  3. Step 3: Cross multiply
    74,889,912.85x = 104,987,435.75 × 74,889,912.85
  4. Step 4: Simplify right side
    74,889,912.85x = 7,862,499,913,662,474
  5. Step 5: Solve for x
    x = 7,862,499,913,662,474/74,889,912.85
  6. Step 6: Final answer
    x = 104,987,435.75

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.