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Finding the Fourth Proportional to 256,769.37, 354,358.13 and 143,592.93

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Solution

The fourth proportional to 256,769.37, 354,358.13 and 143,592.93 is: 198,167.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,769.37 : 354,358.13 = 143,592.93 : x
  2. Step 2: Convert to fraction form
    256,769.37/354,358.13 = 143,592.93/x
  3. Step 3: Cross multiply
    256,769.37x = 354,358.13 × 143,592.93
  4. Step 4: Simplify right side
    256,769.37x = 50,883,321,438.06
  5. Step 5: Solve for x
    x = 50,883,321,438.06/256,769.37
  6. Step 6: Final answer
    x = 198,167.41

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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.