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Finding the Fourth Proportional to 68,884.56, 103,228.16 and 39,241.18

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Solution

The fourth proportional to 68,884.56, 103,228.16 and 39,241.18 is: 58,805.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,884.56 : 103,228.16 = 39,241.18 : x
  2. Step 2: Convert to fraction form
    68,884.56/103,228.16 = 39,241.18/x
  3. Step 3: Cross multiply
    68,884.56x = 103,228.16 × 39,241.18
  4. Step 4: Simplify right side
    68,884.56x = 4,050,794,807.63
  5. Step 5: Solve for x
    x = 4,050,794,807.63/68,884.56
  6. Step 6: Final answer
    x = 58,805.56

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1.5x scale

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.