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Finding the Fourth Proportional to 68,004.60, 93,817.26 and 42,493.58

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Solution

The fourth proportional to 68,004.60, 93,817.26 and 42,493.58 is: 58,622.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,004.60 : 93,817.26 = 42,493.58 : x
  2. Step 2: Convert to fraction form
    68,004.60/93,817.26 = 42,493.58/x
  3. Step 3: Cross multiply
    68,004.60x = 93,817.26 × 42,493.58
  4. Step 4: Simplify right side
    68,004.60x = 3,986,631,243.19
  5. Step 5: Solve for x
    x = 3,986,631,243.19/68,004.60
  6. Step 6: Final answer
    x = 58,622.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.