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Finding the Fourth Proportional to 286,675.66, 395,580.27 and 171,959.01

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Solution

The fourth proportional to 286,675.66, 395,580.27 and 171,959.01 is: 237,284.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,675.66 : 395,580.27 = 171,959.01 : x
  2. Step 2: Convert to fraction form
    286,675.66/395,580.27 = 171,959.01/x
  3. Step 3: Cross multiply
    286,675.66x = 395,580.27 × 171,959.01
  4. Step 4: Simplify right side
    286,675.66x = 68,023,591,604.73
  5. Step 5: Solve for x
    x = 68,023,591,604.73/286,675.66
  6. Step 6: Final answer
    x = 237,284.15

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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.