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Finding the Fourth Proportional to 326,237.22, 489,401.46 and 101,613.96

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Solution

The fourth proportional to 326,237.22, 489,401.46 and 101,613.96 is: 152,435.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,237.22 : 489,401.46 = 101,613.96 : x
  2. Step 2: Convert to fraction form
    326,237.22/489,401.46 = 101,613.96/x
  3. Step 3: Cross multiply
    326,237.22x = 489,401.46 × 101,613.96
  4. Step 4: Simplify right side
    326,237.22x = 49,730,020,380.38
  5. Step 5: Solve for x
    x = 49,730,020,380.38/326,237.22
  6. Step 6: Final answer
    x = 152,435.15

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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.