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Finding the Fourth Proportional to 256,293.28, 353,683.31 and 141,579.80

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Solution

The fourth proportional to 256,293.28, 353,683.31 and 141,579.80 is: 195,379.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,293.28 : 353,683.31 = 141,579.80 : x
  2. Step 2: Convert to fraction form
    256,293.28/353,683.31 = 141,579.80/x
  3. Step 3: Cross multiply
    256,293.28x = 353,683.31 × 141,579.80
  4. Step 4: Simplify right side
    256,293.28x = 50,074,412,293.14
  5. Step 5: Solve for x
    x = 50,074,412,293.14/256,293.28
  6. Step 6: Final answer
    x = 195,379.34

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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.