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Finding the Fourth Proportional to 286,396.52, 395,227.20 and 159,083.96

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Solution

The fourth proportional to 286,396.52, 395,227.20 and 159,083.96 is: 219,535.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,396.52 : 395,227.20 = 159,083.96 : x
  2. Step 2: Convert to fraction form
    286,396.52/395,227.20 = 159,083.96/x
  3. Step 3: Cross multiply
    286,396.52x = 395,227.20 × 159,083.96
  4. Step 4: Simplify right side
    286,396.52x = 62,874,308,075.71
  5. Step 5: Solve for x
    x = 62,874,308,075.71/286,396.52
  6. Step 6: Final answer
    x = 219,535.87

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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.