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Finding the Fourth Proportional to 68,485.80, 102,544.08 and 44,734.52

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Solution

The fourth proportional to 68,485.80, 102,544.08 and 44,734.52 is: 66,981.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,485.80 : 102,544.08 = 44,734.52 : x
  2. Step 2: Convert to fraction form
    68,485.80/102,544.08 = 44,734.52/x
  3. Step 3: Cross multiply
    68,485.80x = 102,544.08 × 44,734.52
  4. Step 4: Simplify right side
    68,485.80x = 4,587,260,197.64
  5. Step 5: Solve for x
    x = 4,587,260,197.64/68,485.80
  6. Step 6: Final answer
    x = 66,981.19

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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.