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Finding the Fourth Proportional to 68,767.08, 103,308.48 and 48,550.32

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Solution

The fourth proportional to 68,767.08, 103,308.48 and 48,550.32 is: 72,936.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,767.08 : 103,308.48 = 48,550.32 : x
  2. Step 2: Convert to fraction form
    68,767.08/103,308.48 = 48,550.32/x
  3. Step 3: Cross multiply
    68,767.08x = 103,308.48 × 48,550.32
  4. Step 4: Simplify right side
    68,767.08x = 5,015,659,762.71
  5. Step 5: Solve for x
    x = 5,015,659,762.71/68,767.08
  6. Step 6: Final answer
    x = 72,936.93

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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.