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Finding the Fourth Proportional to 68,133.88, 102,243.64 and 26,018.32

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Solution

The fourth proportional to 68,133.88, 102,243.64 and 26,018.32 is: 39,043.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,133.88 : 102,243.64 = 26,018.32 : x
  2. Step 2: Convert to fraction form
    68,133.88/102,243.64 = 26,018.32/x
  3. Step 3: Cross multiply
    68,133.88x = 102,243.64 × 26,018.32
  4. Step 4: Simplify right side
    68,133.88x = 2,660,207,743.48
  5. Step 5: Solve for x
    x = 2,660,207,743.48/68,133.88
  6. Step 6: Final answer
    x = 39,043.83

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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.