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Finding the Fourth Proportional to 104,006.90, 155,751.15 and 83,270.90

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Solution

The fourth proportional to 104,006.90, 155,751.15 and 83,270.90 is: 124,698.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,006.90 : 155,751.15 = 83,270.90 : x
  2. Step 2: Convert to fraction form
    104,006.90/155,751.15 = 83,270.90/x
  3. Step 3: Cross multiply
    104,006.90x = 155,751.15 × 83,270.90
  4. Step 4: Simplify right side
    104,006.90x = 12,969,538,436.54
  5. Step 5: Solve for x
    x = 12,969,538,436.54/104,006.90
  6. Step 6: Final answer
    x = 124,698.83

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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.