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Finding the Fourth Proportional to 253,059.56, 379,581.92 and 66,071.04

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Solution

The fourth proportional to 253,059.56, 379,581.92 and 66,071.04 is: 99,104.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,059.56 : 379,581.92 = 66,071.04 : x
  2. Step 2: Convert to fraction form
    253,059.56/379,581.92 = 66,071.04/x
  3. Step 3: Cross multiply
    253,059.56x = 379,581.92 × 66,071.04
  4. Step 4: Simplify right side
    253,059.56x = 25,079,372,219.60
  5. Step 5: Solve for x
    x = 25,079,372,219.60/253,059.56
  6. Step 6: Final answer
    x = 99,104.62

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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.