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Finding the Fourth Proportional to 80,772.78, 111,453.60 and 46,784.44

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Solution

The fourth proportional to 80,772.78, 111,453.60 and 46,784.44 is: 64,555.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,772.78 : 111,453.60 = 46,784.44 : x
  2. Step 2: Convert to fraction form
    80,772.78/111,453.60 = 46,784.44/x
  3. Step 3: Cross multiply
    80,772.78x = 111,453.60 × 46,784.44
  4. Step 4: Simplify right side
    80,772.78x = 5,214,294,261.98
  5. Step 5: Solve for x
    x = 5,214,294,261.98/80,772.78
  6. Step 6: Final answer
    x = 64,555.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.