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Finding the Fourth Proportional to 66,640.02, 99,976.44 and 46,957.02

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Solution

The fourth proportional to 66,640.02, 99,976.44 and 46,957.02 is: 70,447.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,640.02 : 99,976.44 = 46,957.02 : x
  2. Step 2: Convert to fraction form
    66,640.02/99,976.44 = 46,957.02/x
  3. Step 3: Cross multiply
    66,640.02x = 99,976.44 × 46,957.02
  4. Step 4: Simplify right side
    66,640.02x = 4,694,595,692.61
  5. Step 5: Solve for x
    x = 4,694,595,692.61/66,640.02
  6. Step 6: Final answer
    x = 70,447.09

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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.