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Finding the Fourth Proportional to 111,288.54, 166,931.31 and 27,048.47

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Solution

The fourth proportional to 111,288.54, 166,931.31 and 27,048.47 is: 40,572.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,288.54 : 166,931.31 = 27,048.47 : x
  2. Step 2: Convert to fraction form
    111,288.54/166,931.31 = 27,048.47/x
  3. Step 3: Cross multiply
    111,288.54x = 166,931.31 × 27,048.47
  4. Step 4: Simplify right side
    111,288.54x = 4,515,235,695.94
  5. Step 5: Solve for x
    x = 4,515,235,695.94/111,288.54
  6. Step 6: Final answer
    x = 40,572.33

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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.