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Finding the Fourth Proportional to 326,859.41, 489,234.48 and 168,870.53

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Solution

The fourth proportional to 326,859.41, 489,234.48 and 168,870.53 is: 252,760.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,859.41 : 489,234.48 = 168,870.53 : x
  2. Step 2: Convert to fraction form
    326,859.41/489,234.48 = 168,870.53/x
  3. Step 3: Cross multiply
    326,859.41x = 489,234.48 × 168,870.53
  4. Step 4: Simplify right side
    326,859.41x = 82,617,283,485.70
  5. Step 5: Solve for x
    x = 82,617,283,485.70/326,859.41
  6. Step 6: Final answer
    x = 252,760.92

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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.