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Finding the Fourth Proportional to 68,482.56, 94,496 and 40,181.76

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Solution

The fourth proportional to 68,482.56, 94,496 and 40,181.76 is: 55,445.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,482.56 : 94,496 = 40,181.76 : x
  2. Step 2: Convert to fraction form
    68,482.56/94,496 = 40,181.76/x
  3. Step 3: Cross multiply
    68,482.56x = 94,496 × 40,181.76
  4. Step 4: Simplify right side
    68,482.56x = 3,797,015,592.96
  5. Step 5: Solve for x
    x = 3,797,015,592.96/68,482.56
  6. Step 6: Final answer
    x = 55,445.00

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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.