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Finding the Fourth Proportional to 68,946.68, 103,362.60 and 26,816.86

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Solution

The fourth proportional to 68,946.68, 103,362.60 and 26,816.86 is: 40,202.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,946.68 : 103,362.60 = 26,816.86 : x
  2. Step 2: Convert to fraction form
    68,946.68/103,362.60 = 26,816.86/x
  3. Step 3: Cross multiply
    68,946.68x = 103,362.60 × 26,816.86
  4. Step 4: Simplify right side
    68,946.68x = 2,771,860,115.03
  5. Step 5: Solve for x
    x = 2,771,860,115.03/68,946.68
  6. Step 6: Final answer
    x = 40,202.96

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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.