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Finding the Fourth Proportional to 116,081.58, 174,122.37 and 76,629.45

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Solution

The fourth proportional to 116,081.58, 174,122.37 and 76,629.45 is: 114,944.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,081.58 : 174,122.37 = 76,629.45 : x
  2. Step 2: Convert to fraction form
    116,081.58/174,122.37 = 76,629.45/x
  3. Step 3: Cross multiply
    116,081.58x = 174,122.37 × 76,629.45
  4. Step 4: Simplify right side
    116,081.58x = 13,342,901,445.80
  5. Step 5: Solve for x
    x = 13,342,901,445.80/116,081.58
  6. Step 6: Final answer
    x = 114,944.18

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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.