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Finding the Fourth Proportional to 68,357.60, 102,536.40 and 48,674.60

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Solution

The fourth proportional to 68,357.60, 102,536.40 and 48,674.60 is: 73,011.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,357.60 : 102,536.40 = 48,674.60 : x
  2. Step 2: Convert to fraction form
    68,357.60/102,536.40 = 48,674.60/x
  3. Step 3: Cross multiply
    68,357.60x = 102,536.40 × 48,674.60
  4. Step 4: Simplify right side
    68,357.60x = 4,990,918,255.44
  5. Step 5: Solve for x
    x = 4,990,918,255.44/68,357.60
  6. Step 6: Final answer
    x = 73,011.90

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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.