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Finding the Fourth Proportional to 243,443.03, 364,620.03 and 140,734.51

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Solution

The fourth proportional to 243,443.03, 364,620.03 and 140,734.51 is: 210,786.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,443.03 : 364,620.03 = 140,734.51 : x
  2. Step 2: Convert to fraction form
    243,443.03/364,620.03 = 140,734.51/x
  3. Step 3: Cross multiply
    243,443.03x = 364,620.03 × 140,734.51
  4. Step 4: Simplify right side
    243,443.03x = 51,314,619,435.14
  5. Step 5: Solve for x
    x = 51,314,619,435.14/243,443.03
  6. Step 6: Final answer
    x = 210,786.97

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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.