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Finding the Fourth Proportional to 79,815.32, 110,149.80 and 44,012.96

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Solution

The fourth proportional to 79,815.32, 110,149.80 and 44,012.96 is: 60,740.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,815.32 : 110,149.80 = 44,012.96 : x
  2. Step 2: Convert to fraction form
    79,815.32/110,149.80 = 44,012.96/x
  3. Step 3: Cross multiply
    79,815.32x = 110,149.80 × 44,012.96
  4. Step 4: Simplify right side
    79,815.32x = 4,848,018,741.41
  5. Step 5: Solve for x
    x = 4,848,018,741.41/79,815.32
  6. Step 6: Final answer
    x = 60,740.45

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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.