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Finding the Fourth Proportional to 74,885,969.60, 105,067,105.60 and 74,885,969.60

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Solution

The fourth proportional to 74,885,969.60, 105,067,105.60 and 74,885,969.60 is: 105,067,105.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,885,969.60 : 105,067,105.60 = 74,885,969.60 : x
  2. Step 2: Convert to fraction form
    74,885,969.60/105,067,105.60 = 74,885,969.60/x
  3. Step 3: Cross multiply
    74,885,969.60x = 105,067,105.60 × 74,885,969.60
  4. Step 4: Simplify right side
    74,885,969.60x = 7,868,052,075,921,589
  5. Step 5: Solve for x
    x = 7,868,052,075,921,589/74,885,969.60
  6. Step 6: Final answer
    x = 105,067,105.60

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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.