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Finding the Fourth Proportional to 123,817.01, 170,866.67 and 67,228.38

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Solution

The fourth proportional to 123,817.01, 170,866.67 and 67,228.38 is: 92,774.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,817.01 : 170,866.67 = 67,228.38 : x
  2. Step 2: Convert to fraction form
    123,817.01/170,866.67 = 67,228.38/x
  3. Step 3: Cross multiply
    123,817.01x = 170,866.67 × 67,228.38
  4. Step 4: Simplify right side
    123,817.01x = 11,487,089,083.95
  5. Step 5: Solve for x
    x = 11,487,089,083.95/123,817.01
  6. Step 6: Final answer
    x = 92,774.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.