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Finding the Fourth Proportional to 113,144.94, 169,739.26 and 43,018.80

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Solution

The fourth proportional to 113,144.94, 169,739.26 and 43,018.80 is: 64,536.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,144.94 : 169,739.26 = 43,018.80 : x
  2. Step 2: Convert to fraction form
    113,144.94/169,739.26 = 43,018.80/x
  3. Step 3: Cross multiply
    113,144.94x = 169,739.26 × 43,018.80
  4. Step 4: Simplify right side
    113,144.94x = 7,301,978,907.51
  5. Step 5: Solve for x
    x = 7,301,978,907.51/113,144.94
  6. Step 6: Final answer
    x = 64,536.51

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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.