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Finding the Fourth Proportional to 79,930.40, 110,303.97 and 44,120.43

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Solution

The fourth proportional to 79,930.40, 110,303.97 and 44,120.43 is: 60,886.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,930.40 : 110,303.97 = 44,120.43 : x
  2. Step 2: Convert to fraction form
    79,930.40/110,303.97 = 44,120.43/x
  3. Step 3: Cross multiply
    79,930.40x = 110,303.97 × 44,120.43
  4. Step 4: Simplify right side
    79,930.40x = 4,866,658,587.11
  5. Step 5: Solve for x
    x = 4,866,658,587.11/79,930.40
  6. Step 6: Final answer
    x = 60,886.20

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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.