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Finding the Fourth Proportional to 100,654.08, 150,986.16 and 38,329.44

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Solution

The fourth proportional to 100,654.08, 150,986.16 and 38,329.44 is: 57,496.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,654.08 : 150,986.16 = 38,329.44 : x
  2. Step 2: Convert to fraction form
    100,654.08/150,986.16 = 38,329.44/x
  3. Step 3: Cross multiply
    100,654.08x = 150,986.16 × 38,329.44
  4. Step 4: Simplify right side
    100,654.08x = 5,787,214,960.55
  5. Step 5: Solve for x
    x = 5,787,214,960.55/100,654.08
  6. Step 6: Final answer
    x = 57,496.08

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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.