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Finding the Fourth Proportional to 79,743.65, 110,026.37 and 51,415.25

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Solution

The fourth proportional to 79,743.65, 110,026.37 and 51,415.25 is: 70,940.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,743.65 : 110,026.37 = 51,415.25 : x
  2. Step 2: Convert to fraction form
    79,743.65/110,026.37 = 51,415.25/x
  3. Step 3: Cross multiply
    79,743.65x = 110,026.37 × 51,415.25
  4. Step 4: Simplify right side
    79,743.65x = 5,657,033,063.07
  5. Step 5: Solve for x
    x = 5,657,033,063.07/79,743.65
  6. Step 6: Final answer
    x = 70,940.23

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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.