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Finding the Fourth Proportional to 84,994,662.40, 127,491,993.60 and 27,528,175.60

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Solution

The fourth proportional to 84,994,662.40, 127,491,993.60 and 27,528,175.60 is: 41,292,263.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,994,662.40 : 127,491,993.60 = 27,528,175.60 : x
  2. Step 2: Convert to fraction form
    84,994,662.40/127,491,993.60 = 27,528,175.60/x
  3. Step 3: Cross multiply
    84,994,662.40x = 127,491,993.60 × 27,528,175.60
  4. Step 4: Simplify right side
    84,994,662.40x = 3,509,621,987,414,876
  5. Step 5: Solve for x
    x = 3,509,621,987,414,876/84,994,662.40
  6. Step 6: Final answer
    x = 41,292,263.40

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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.