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Finding the Fourth Proportional to 326,568.89, 489,871.56 and 101,960.34

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Solution

The fourth proportional to 326,568.89, 489,871.56 and 101,960.34 is: 152,946.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,568.89 : 489,871.56 = 101,960.34 : x
  2. Step 2: Convert to fraction form
    326,568.89/489,871.56 = 101,960.34/x
  3. Step 3: Cross multiply
    326,568.89x = 489,871.56 × 101,960.34
  4. Step 4: Simplify right side
    326,568.89x = 49,947,470,813.93
  5. Step 5: Solve for x
    x = 49,947,470,813.93/326,568.89
  6. Step 6: Final answer
    x = 152,946.20

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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.