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Finding the Fourth Proportional to 68,969.58, 103,453.61 and 48,622.58

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Solution

The fourth proportional to 68,969.58, 103,453.61 and 48,622.58 is: 72,933.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,969.58 : 103,453.61 = 48,622.58 : x
  2. Step 2: Convert to fraction form
    68,969.58/103,453.61 = 48,622.58/x
  3. Step 3: Cross multiply
    68,969.58x = 103,453.61 × 48,622.58
  4. Step 4: Simplify right side
    68,969.58x = 5,030,181,056.08
  5. Step 5: Solve for x
    x = 5,030,181,056.08/68,969.58
  6. Step 6: Final answer
    x = 72,933.33

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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.