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Finding the Fourth Proportional to 326,413.71, 489,226.85 and 168,556.11

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Solution

The fourth proportional to 326,413.71, 489,226.85 and 168,556.11 is: 252,630.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,413.71 : 489,226.85 = 168,556.11 : x
  2. Step 2: Convert to fraction form
    326,413.71/489,226.85 = 168,556.11/x
  3. Step 3: Cross multiply
    326,413.71x = 489,226.85 × 168,556.11
  4. Step 4: Simplify right side
    326,413.71x = 82,462,173,900.77
  5. Step 5: Solve for x
    x = 82,462,173,900.77/326,413.71
  6. Step 6: Final answer
    x = 252,630.85

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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.