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Finding the Fourth Proportional to 366,987.96, 550,564.83 and 130,330.80

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Solution

The fourth proportional to 366,987.96, 550,564.83 and 130,330.80 is: 195,525.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,987.96 : 550,564.83 = 130,330.80 : x
  2. Step 2: Convert to fraction form
    366,987.96/550,564.83 = 130,330.80/x
  3. Step 3: Cross multiply
    366,987.96x = 550,564.83 × 130,330.80
  4. Step 4: Simplify right side
    366,987.96x = 71,755,554,745.76
  5. Step 5: Solve for x
    x = 71,755,554,745.76/366,987.96
  6. Step 6: Final answer
    x = 195,525.64

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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.