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Finding the Fourth Proportional to 68,513.55, 94,550.39 and 38,303.89

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Solution

The fourth proportional to 68,513.55, 94,550.39 and 38,303.89 is: 52,860.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,513.55 : 94,550.39 = 38,303.89 : x
  2. Step 2: Convert to fraction form
    68,513.55/94,550.39 = 38,303.89/x
  3. Step 3: Cross multiply
    68,513.55x = 94,550.39 × 38,303.89
  4. Step 4: Simplify right side
    68,513.55x = 3,621,647,738.02
  5. Step 5: Solve for x
    x = 3,621,647,738.02/68,513.55
  6. Step 6: Final answer
    x = 52,860.31

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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.