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Finding the Fourth Proportional to 140,448.28, 210,629.58 and 73,852.28

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Solution

The fourth proportional to 140,448.28, 210,629.58 and 73,852.28 is: 110,755.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,448.28 : 210,629.58 = 73,852.28 : x
  2. Step 2: Convert to fraction form
    140,448.28/210,629.58 = 73,852.28/x
  3. Step 3: Cross multiply
    140,448.28x = 210,629.58 × 73,852.28
  4. Step 4: Simplify right side
    140,448.28x = 15,555,474,718.44
  5. Step 5: Solve for x
    x = 15,555,474,718.44/140,448.28
  6. Step 6: Final answer
    x = 110,755.89

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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.