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Finding the Fourth Proportional to 256,082.99, 353,394.60 and 141,361.71

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Solution

The fourth proportional to 256,082.99, 353,394.60 and 141,361.71 is: 195,079.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,082.99 : 353,394.60 = 141,361.71 : x
  2. Step 2: Convert to fraction form
    256,082.99/353,394.60 = 141,361.71/x
  3. Step 3: Cross multiply
    256,082.99x = 353,394.60 × 141,361.71
  4. Step 4: Simplify right side
    256,082.99x = 49,956,463,105.43
  5. Step 5: Solve for x
    x = 49,956,463,105.43/256,082.99
  6. Step 6: Final answer
    x = 195,079.20

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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.