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Finding the Fourth Proportional to 123,245.22, 184,878.41 and 43,276.31

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Solution

The fourth proportional to 123,245.22, 184,878.41 and 43,276.31 is: 64,918.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,245.22 : 184,878.41 = 43,276.31 : x
  2. Step 2: Convert to fraction form
    123,245.22/184,878.41 = 43,276.31/x
  3. Step 3: Cross multiply
    123,245.22x = 184,878.41 × 43,276.31
  4. Step 4: Simplify right side
    123,245.22x = 8,000,855,444.92
  5. Step 5: Solve for x
    x = 8,000,855,444.92/123,245.22
  6. Step 6: Final answer
    x = 64,918.18

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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.