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Finding the Fourth Proportional to 185,796.90, 256,395.51 and 100,912.14

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Solution

The fourth proportional to 185,796.90, 256,395.51 and 100,912.14 is: 139,256.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,796.90 : 256,395.51 = 100,912.14 : x
  2. Step 2: Convert to fraction form
    185,796.90/256,395.51 = 100,912.14/x
  3. Step 3: Cross multiply
    185,796.90x = 256,395.51 × 100,912.14
  4. Step 4: Simplify right side
    185,796.90x = 25,873,419,600.49
  5. Step 5: Solve for x
    x = 25,873,419,600.49/185,796.90
  6. Step 6: Final answer
    x = 139,256.47

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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.