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Finding the Fourth Proportional to 79,147.44, 118,746 and 34,811.46

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Solution

The fourth proportional to 79,147.44, 118,746 and 34,811.46 is: 52,228.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,147.44 : 118,746 = 34,811.46 : x
  2. Step 2: Convert to fraction form
    79,147.44/118,746 = 34,811.46/x
  3. Step 3: Cross multiply
    79,147.44x = 118,746 × 34,811.46
  4. Step 4: Simplify right side
    79,147.44x = 4,133,721,629.16
  5. Step 5: Solve for x
    x = 4,133,721,629.16/79,147.44
  6. Step 6: Final answer
    x = 52,228.12

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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.