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Finding the Fourth Proportional to 76,858.36, 114,523.52 and 68,473.96

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Solution

The fourth proportional to 76,858.36, 114,523.52 and 68,473.96 is: 102,030.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,858.36 : 114,523.52 = 68,473.96 : x
  2. Step 2: Convert to fraction form
    76,858.36/114,523.52 = 68,473.96/x
  3. Step 3: Cross multiply
    76,858.36x = 114,523.52 × 68,473.96
  4. Step 4: Simplify right side
    76,858.36x = 7,841,878,927.54
  5. Step 5: Solve for x
    x = 7,841,878,927.54/76,858.36
  6. Step 6: Final answer
    x = 102,030.27

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.