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Finding the Fourth Proportional to 84,994,448.40, 127,491,672.60 and 27,527,961.60

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Solution

The fourth proportional to 84,994,448.40, 127,491,672.60 and 27,527,961.60 is: 41,291,942.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,994,448.40 : 127,491,672.60 = 27,527,961.60 : x
  2. Step 2: Convert to fraction form
    84,994,448.40/127,491,672.60 = 27,527,961.60/x
  3. Step 3: Cross multiply
    84,994,448.40x = 127,491,672.60 × 27,527,961.60
  4. Step 4: Simplify right side
    84,994,448.40x = 3,509,585,867,652,572
  5. Step 5: Solve for x
    x = 3,509,585,867,652,572/84,994,448.40
  6. Step 6: Final answer
    x = 41,291,942.40

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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.