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Finding the Fourth Proportional to 256,537.96, 354,022.87 and 143,360.71

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Solution

The fourth proportional to 256,537.96, 354,022.87 and 143,360.71 is: 197,838.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,537.96 : 354,022.87 = 143,360.71 : x
  2. Step 2: Convert to fraction form
    256,537.96/354,022.87 = 143,360.71/x
  3. Step 3: Cross multiply
    256,537.96x = 354,022.87 × 143,360.71
  4. Step 4: Simplify right side
    256,537.96x = 50,752,969,282.63
  5. Step 5: Solve for x
    x = 50,752,969,282.63/256,537.96
  6. Step 6: Final answer
    x = 197,838.05

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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.