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Finding the Fourth Proportional to 256,101.44, 353,425.62 and 141,379.80

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Solution

The fourth proportional to 256,101.44, 353,425.62 and 141,379.80 is: 195,107.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,101.44 : 353,425.62 = 141,379.80 : x
  2. Step 2: Convert to fraction form
    256,101.44/353,425.62 = 141,379.80/x
  3. Step 3: Cross multiply
    256,101.44x = 353,425.62 × 141,379.80
  4. Step 4: Simplify right side
    256,101.44x = 49,967,243,470.48
  5. Step 5: Solve for x
    x = 49,967,243,470.48/256,101.44
  6. Step 6: Final answer
    x = 195,107.24

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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.