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Finding the Fourth Proportional to 64,310.69, 88,749.97 and 36,016.31

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Solution

The fourth proportional to 64,310.69, 88,749.97 and 36,016.31 is: 49,703.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,310.69 : 88,749.97 = 36,016.31 : x
  2. Step 2: Convert to fraction form
    64,310.69/88,749.97 = 36,016.31/x
  3. Step 3: Cross multiply
    64,310.69x = 88,749.97 × 36,016.31
  4. Step 4: Simplify right side
    64,310.69x = 3,196,445,898.22
  5. Step 5: Solve for x
    x = 3,196,445,898.22/64,310.69
  6. Step 6: Final answer
    x = 49,703.19

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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.