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Finding the Fourth Proportional to 256,995.33, 383,931.09 and 166,299.17

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Solution

The fourth proportional to 256,995.33, 383,931.09 and 166,299.17 is: 248,438.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,995.33 : 383,931.09 = 166,299.17 : x
  2. Step 2: Convert to fraction form
    256,995.33/383,931.09 = 166,299.17/x
  3. Step 3: Cross multiply
    256,995.33x = 383,931.09 × 166,299.17
  4. Step 4: Simplify right side
    256,995.33x = 63,847,420,772.70
  5. Step 5: Solve for x
    x = 63,847,420,772.70/256,995.33
  6. Step 6: Final answer
    x = 248,438.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.