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Finding the Fourth Proportional to 256,208.06, 384,546.44 and 129,935.44

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Solution

The fourth proportional to 256,208.06, 384,546.44 and 129,935.44 is: 195,022.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,208.06 : 384,546.44 = 129,935.44 : x
  2. Step 2: Convert to fraction form
    256,208.06/384,546.44 = 129,935.44/x
  3. Step 3: Cross multiply
    256,208.06x = 384,546.44 × 129,935.44
  4. Step 4: Simplify right side
    256,208.06x = 49,966,210,956.47
  5. Step 5: Solve for x
    x = 49,966,210,956.47/256,208.06
  6. Step 6: Final answer
    x = 195,022.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.