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Finding the Fourth Proportional to 171,307.40, 236,493.74 and 106,796.30

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Solution

The fourth proportional to 171,307.40, 236,493.74 and 106,796.30 is: 147,434.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,307.40 : 236,493.74 = 106,796.30 : x
  2. Step 2: Convert to fraction form
    171,307.40/236,493.74 = 106,796.30/x
  3. Step 3: Cross multiply
    171,307.40x = 236,493.74 × 106,796.30
  4. Step 4: Simplify right side
    171,307.40x = 25,256,655,489.68
  5. Step 5: Solve for x
    x = 25,256,655,489.68/171,307.40
  6. Step 6: Final answer
    x = 147,434.71

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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.