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Finding the Fourth Proportional to 68,183, 94,101.18 and 38,380.76

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Solution

The fourth proportional to 68,183, 94,101.18 and 38,380.76 is: 52,970.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,183 : 94,101.18 = 38,380.76 : x
  2. Step 2: Convert to fraction form
    68,183/94,101.18 = 38,380.76/x
  3. Step 3: Cross multiply
    68,183x = 94,101.18 × 38,380.76
  4. Step 4: Simplify right side
    68,183x = 3,611,674,805.30
  5. Step 5: Solve for x
    x = 3,611,674,805.30/68,183
  6. Step 6: Final answer
    x = 52,970.31

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1.5x scale

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.