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Finding the Fourth Proportional to 111,099.32, 166,661.97 and 39,030.11

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Solution

The fourth proportional to 111,099.32, 166,661.97 and 39,030.11 is: 58,549.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,099.32 : 166,661.97 = 39,030.11 : x
  2. Step 2: Convert to fraction form
    111,099.32/166,661.97 = 39,030.11/x
  3. Step 3: Cross multiply
    111,099.32x = 166,661.97 × 39,030.11
  4. Step 4: Simplify right side
    111,099.32x = 6,504,835,021.92
  5. Step 5: Solve for x
    x = 6,504,835,021.92/111,099.32
  6. Step 6: Final answer
    x = 58,549.73

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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.