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Finding the Fourth Proportional to 326,907.84, 490,375.32 and 102,272.58

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Solution

The fourth proportional to 326,907.84, 490,375.32 and 102,272.58 is: 153,413.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,907.84 : 490,375.32 = 102,272.58 : x
  2. Step 2: Convert to fraction form
    326,907.84/490,375.32 = 102,272.58/x
  3. Step 3: Cross multiply
    326,907.84x = 490,375.32 × 102,272.58
  4. Step 4: Simplify right side
    326,907.84x = 50,151,949,144.73
  5. Step 5: Solve for x
    x = 50,151,949,144.73/326,907.84
  6. Step 6: Final answer
    x = 153,413.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.