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Finding the Fourth Proportional to 64,437.09, 88,917.26 and 36,137.31

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Solution

The fourth proportional to 64,437.09, 88,917.26 and 36,137.31 is: 49,866.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,437.09 : 88,917.26 = 36,137.31 : x
  2. Step 2: Convert to fraction form
    64,437.09/88,917.26 = 36,137.31/x
  3. Step 3: Cross multiply
    64,437.09x = 88,917.26 × 36,137.31
  4. Step 4: Simplify right side
    64,437.09x = 3,213,230,408.28
  5. Step 5: Solve for x
    x = 3,213,230,408.28/64,437.09
  6. Step 6: Final answer
    x = 49,866.16

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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.