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Finding the Fourth Proportional to 68,793.12, 103,057.84 and 46,568.16

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Solution

The fourth proportional to 68,793.12, 103,057.84 and 46,568.16 is: 69,762.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,793.12 : 103,057.84 = 46,568.16 : x
  2. Step 2: Convert to fraction form
    68,793.12/103,057.84 = 46,568.16/x
  3. Step 3: Cross multiply
    68,793.12x = 103,057.84 × 46,568.16
  4. Step 4: Simplify right side
    68,793.12x = 4,799,213,982.37
  5. Step 5: Solve for x
    x = 4,799,213,982.37/68,793.12
  6. Step 6: Final answer
    x = 69,762.99

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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.