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Finding the Fourth Proportional to 68,482.98, 94,515.90 and 39,410.75

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Solution

The fourth proportional to 68,482.98, 94,515.90 and 39,410.75 is: 54,392.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,482.98 : 94,515.90 = 39,410.75 : x
  2. Step 2: Convert to fraction form
    68,482.98/94,515.90 = 39,410.75/x
  3. Step 3: Cross multiply
    68,482.98x = 94,515.90 × 39,410.75
  4. Step 4: Simplify right side
    68,482.98x = 3,724,942,505.93
  5. Step 5: Solve for x
    x = 3,724,942,505.93/68,482.98
  6. Step 6: Final answer
    x = 54,392.24

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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.