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Finding the Fourth Proportional to 61,512.40, 92,268.60 and 46,640.80

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Solution

The fourth proportional to 61,512.40, 92,268.60 and 46,640.80 is: 69,961.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,512.40 : 92,268.60 = 46,640.80 : x
  2. Step 2: Convert to fraction form
    61,512.40/92,268.60 = 46,640.80/x
  3. Step 3: Cross multiply
    61,512.40x = 92,268.60 × 46,640.80
  4. Step 4: Simplify right side
    61,512.40x = 4,303,481,318.88
  5. Step 5: Solve for x
    x = 4,303,481,318.88/61,512.40
  6. Step 6: Final answer
    x = 69,961.20

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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.