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Finding the Fourth Proportional to 183,206.80, 274,745.39 and 87,132.70

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Solution

The fourth proportional to 183,206.80, 274,745.39 and 87,132.70 is: 130,668.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,206.80 : 274,745.39 = 87,132.70 : x
  2. Step 2: Convert to fraction form
    183,206.80/274,745.39 = 87,132.70/x
  3. Step 3: Cross multiply
    183,206.80x = 274,745.39 × 87,132.70
  4. Step 4: Simplify right side
    183,206.80x = 23,939,307,643.25
  5. Step 5: Solve for x
    x = 23,939,307,643.25/183,206.80
  6. Step 6: Final answer
    x = 130,668.23

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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.