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Finding the Fourth Proportional to 192,928.64, 266,210.56 and 108,049.28

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Solution

The fourth proportional to 192,928.64, 266,210.56 and 108,049.28 is: 149,090.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,928.64 : 266,210.56 = 108,049.28 : x
  2. Step 2: Convert to fraction form
    192,928.64/266,210.56 = 108,049.28/x
  3. Step 3: Cross multiply
    192,928.64x = 266,210.56 × 108,049.28
  4. Step 4: Simplify right side
    192,928.64x = 28,763,859,336.40
  5. Step 5: Solve for x
    x = 28,763,859,336.40/192,928.64
  6. Step 6: Final answer
    x = 149,090.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.