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Finding the Fourth Proportional to 274,056.46, 411,068.29 and 74,372.43

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Solution

The fourth proportional to 274,056.46, 411,068.29 and 74,372.43 is: 111,554.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,056.46 : 411,068.29 = 74,372.43 : x
  2. Step 2: Convert to fraction form
    274,056.46/411,068.29 = 74,372.43/x
  3. Step 3: Cross multiply
    274,056.46x = 411,068.29 × 74,372.43
  4. Step 4: Simplify right side
    274,056.46x = 30,572,147,015.18
  5. Step 5: Solve for x
    x = 30,572,147,015.18/274,056.46
  6. Step 6: Final answer
    x = 111,554.19

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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.