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Finding the Fourth Proportional to 66,444,977.60, 99,647,805.60 and 26,032,203.20

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Solution

The fourth proportional to 66,444,977.60, 99,647,805.60 and 26,032,203.20 is: 39,040,601.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,444,977.60 : 99,647,805.60 = 26,032,203.20 : x
  2. Step 2: Convert to fraction form
    66,444,977.60/99,647,805.60 = 26,032,203.20/x
  3. Step 3: Cross multiply
    66,444,977.60x = 99,647,805.60 × 26,032,203.20
  4. Step 4: Simplify right side
    66,444,977.60x = 2,594,051,923,813,297.50
  5. Step 5: Solve for x
    x = 2,594,051,923,813,297.50/66,444,977.60
  6. Step 6: Final answer
    x = 39,040,601.98

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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.