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Finding the Fourth Proportional to 68,055.58, 102,007.74 and 51,361.48

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Solution

The fourth proportional to 68,055.58, 102,007.74 and 51,361.48 is: 76,985.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,055.58 : 102,007.74 = 51,361.48 : x
  2. Step 2: Convert to fraction form
    68,055.58/102,007.74 = 51,361.48/x
  3. Step 3: Cross multiply
    68,055.58x = 102,007.74 × 51,361.48
  4. Step 4: Simplify right side
    68,055.58x = 5,239,268,497.86
  5. Step 5: Solve for x
    x = 5,239,268,497.86/68,055.58
  6. Step 6: Final answer
    x = 76,985.14

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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.