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Finding the Fourth Proportional to 324,130.48, 486,413.16 and 113,769.04

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Solution

The fourth proportional to 324,130.48, 486,413.16 and 113,769.04 is: 170,729.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,130.48 : 486,413.16 = 113,769.04 : x
  2. Step 2: Convert to fraction form
    324,130.48/486,413.16 = 113,769.04/x
  3. Step 3: Cross multiply
    324,130.48x = 486,413.16 × 113,769.04
  4. Step 4: Simplify right side
    324,130.48x = 55,338,758,256.57
  5. Step 5: Solve for x
    x = 55,338,758,256.57/324,130.48
  6. Step 6: Final answer
    x = 170,729.88

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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.