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Finding the Fourth Proportional to 256,324.99, 353,721.60 and 141,601.15

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Solution

The fourth proportional to 256,324.99, 353,721.60 and 141,601.15 is: 195,405.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,324.99 : 353,721.60 = 141,601.15 : x
  2. Step 2: Convert to fraction form
    256,324.99/353,721.60 = 141,601.15/x
  3. Step 3: Cross multiply
    256,324.99x = 353,721.60 × 141,601.15
  4. Step 4: Simplify right side
    256,324.99x = 50,087,385,339.84
  5. Step 5: Solve for x
    x = 50,087,385,339.84/256,324.99
  6. Step 6: Final answer
    x = 195,405.78

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1.5x scale

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.