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Finding the Fourth Proportional to 111,021.70, 166,532.55 and 36,148.90

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Solution

The fourth proportional to 111,021.70, 166,532.55 and 36,148.90 is: 54,223.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,021.70 : 166,532.55 = 36,148.90 : x
  2. Step 2: Convert to fraction form
    111,021.70/166,532.55 = 36,148.90/x
  3. Step 3: Cross multiply
    111,021.70x = 166,532.55 × 36,148.90
  4. Step 4: Simplify right side
    111,021.70x = 6,019,968,496.70
  5. Step 5: Solve for x
    x = 6,019,968,496.70/111,021.70
  6. Step 6: Final answer
    x = 54,223.35

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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.