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Finding the Fourth Proportional to 100,668.01, 150,673.44 and 74,006.94

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Solution

The fourth proportional to 100,668.01, 150,673.44 and 74,006.94 is: 110,768.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,668.01 : 150,673.44 = 74,006.94 : x
  2. Step 2: Convert to fraction form
    100,668.01/150,673.44 = 74,006.94/x
  3. Step 3: Cross multiply
    100,668.01x = 150,673.44 × 74,006.94
  4. Step 4: Simplify right side
    100,668.01x = 11,150,880,233.67
  5. Step 5: Solve for x
    x = 11,150,880,233.67/100,668.01
  6. Step 6: Final answer
    x = 110,768.86

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1.5x scale

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.