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Finding the Fourth Proportional to 68,943.98, 103,438.25 and 33,859.03

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Solution

The fourth proportional to 68,943.98, 103,438.25 and 33,859.03 is: 50,799.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,943.98 : 103,438.25 = 33,859.03 : x
  2. Step 2: Convert to fraction form
    68,943.98/103,438.25 = 33,859.03/x
  3. Step 3: Cross multiply
    68,943.98x = 103,438.25 × 33,859.03
  4. Step 4: Simplify right side
    68,943.98x = 3,502,318,123.41
  5. Step 5: Solve for x
    x = 3,502,318,123.41/68,943.98
  6. Step 6: Final answer
    x = 50,799.48

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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.