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Finding the Fourth Proportional to 68,794.45, 103,191.68 and 68,794.45

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Solution

The fourth proportional to 68,794.45, 103,191.68 and 68,794.45 is: 103,191.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,794.45 : 103,191.68 = 68,794.45 : x
  2. Step 2: Convert to fraction form
    68,794.45/103,191.68 = 68,794.45/x
  3. Step 3: Cross multiply
    68,794.45x = 103,191.68 × 68,794.45
  4. Step 4: Simplify right side
    68,794.45x = 7,099,014,870.18
  5. Step 5: Solve for x
    x = 7,099,014,870.18/68,794.45
  6. Step 6: Final answer
    x = 103,191.68

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1.5x scale

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.