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Finding the Fourth Proportional to 79,225.85, 118,758.80 and 49,664.45

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Solution

The fourth proportional to 79,225.85, 118,758.80 and 49,664.45 is: 74,446.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,225.85 : 118,758.80 = 49,664.45 : x
  2. Step 2: Convert to fraction form
    79,225.85/118,758.80 = 49,664.45/x
  3. Step 3: Cross multiply
    79,225.85x = 118,758.80 × 49,664.45
  4. Step 4: Simplify right side
    79,225.85x = 5,898,089,642.54
  5. Step 5: Solve for x
    x = 5,898,089,642.54/79,225.85
  6. Step 6: Final answer
    x = 74,446.53

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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.