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Finding the Fourth Proportional to 79,099.32, 118,664.76 and 29,179.56

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Solution

The fourth proportional to 79,099.32, 118,664.76 and 29,179.56 is: 43,775.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,099.32 : 118,664.76 = 29,179.56 : x
  2. Step 2: Convert to fraction form
    79,099.32/118,664.76 = 29,179.56/x
  3. Step 3: Cross multiply
    79,099.32x = 118,664.76 × 29,179.56
  4. Step 4: Simplify right side
    79,099.32x = 3,462,585,484.31
  5. Step 5: Solve for x
    x = 3,462,585,484.31/79,099.32
  6. Step 6: Final answer
    x = 43,775.16

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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.