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Finding the Fourth Proportional to 185,522.99, 256,022.37 and 100,640.66

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Solution

The fourth proportional to 185,522.99, 256,022.37 and 100,640.66 is: 138,884.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,522.99 : 256,022.37 = 100,640.66 : x
  2. Step 2: Convert to fraction form
    185,522.99/256,022.37 = 100,640.66/x
  3. Step 3: Cross multiply
    185,522.99x = 256,022.37 × 100,640.66
  4. Step 4: Simplify right side
    185,522.99x = 25,766,259,011.45
  5. Step 5: Solve for x
    x = 25,766,259,011.45/185,522.99
  6. Step 6: Final answer
    x = 138,884.46

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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.