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Finding the Fourth Proportional to 78,904.69, 108,874.01 and 44,911.19

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Solution

The fourth proportional to 78,904.69, 108,874.01 and 44,911.19 is: 61,969.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,904.69 : 108,874.01 = 44,911.19 : x
  2. Step 2: Convert to fraction form
    78,904.69/108,874.01 = 44,911.19/x
  3. Step 3: Cross multiply
    78,904.69x = 108,874.01 × 44,911.19
  4. Step 4: Simplify right side
    78,904.69x = 4,889,661,733.63
  5. Step 5: Solve for x
    x = 4,889,661,733.63/78,904.69
  6. Step 6: Final answer
    x = 61,969.22

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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.