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Finding the Fourth Proportional to 79,316.44, 109,466.42 and 45,782.44

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Solution

The fourth proportional to 79,316.44, 109,466.42 and 45,782.44 is: 63,185.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,316.44 : 109,466.42 = 45,782.44 : x
  2. Step 2: Convert to fraction form
    79,316.44/109,466.42 = 45,782.44/x
  3. Step 3: Cross multiply
    79,316.44x = 109,466.42 × 45,782.44
  4. Step 4: Simplify right side
    79,316.44x = 5,011,639,303.09
  5. Step 5: Solve for x
    x = 5,011,639,303.09/79,316.44
  6. Step 6: Final answer
    x = 63,185.38

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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.