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Finding the Fourth Proportional to 103,676.72, 155,509.62 and 51,068.44

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Solution

The fourth proportional to 103,676.72, 155,509.62 and 51,068.44 is: 76,599.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,676.72 : 155,509.62 = 51,068.44 : x
  2. Step 2: Convert to fraction form
    103,676.72/155,509.62 = 51,068.44/x
  3. Step 3: Cross multiply
    103,676.72x = 155,509.62 × 51,068.44
  4. Step 4: Simplify right side
    103,676.72x = 7,941,633,698.39
  5. Step 5: Solve for x
    x = 7,941,633,698.39/103,676.72
  6. Step 6: Final answer
    x = 76,599.97

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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.