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Finding the Fourth Proportional to 70,714.80, 106,083.10 and 44,040.36

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Solution

The fourth proportional to 70,714.80, 106,083.10 and 44,040.36 is: 66,067.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,714.80 : 106,083.10 = 44,040.36 : x
  2. Step 2: Convert to fraction form
    70,714.80/106,083.10 = 44,040.36/x
  3. Step 3: Cross multiply
    70,714.80x = 106,083.10 × 44,040.36
  4. Step 4: Simplify right side
    70,714.80x = 4,671,937,913.92
  5. Step 5: Solve for x
    x = 4,671,937,913.92/70,714.80
  6. Step 6: Final answer
    x = 66,067.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.