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Finding the Fourth Proportional to 243,974.70, 365,961.96 and 66,482.64

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Solution

The fourth proportional to 243,974.70, 365,961.96 and 66,482.64 is: 99,723.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,974.70 : 365,961.96 = 66,482.64 : x
  2. Step 2: Convert to fraction form
    243,974.70/365,961.96 = 66,482.64/x
  3. Step 3: Cross multiply
    243,974.70x = 365,961.96 × 66,482.64
  4. Step 4: Simplify right side
    243,974.70x = 24,330,117,240.37
  5. Step 5: Solve for x
    x = 24,330,117,240.37/243,974.70
  6. Step 6: Final answer
    x = 99,723.94

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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.