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Finding the Fourth Proportional to 68,290.92, 102,365.91 and 26,159.49

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Solution

The fourth proportional to 68,290.92, 102,365.91 and 26,159.49 is: 39,212.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,290.92 : 102,365.91 = 26,159.49 : x
  2. Step 2: Convert to fraction form
    68,290.92/102,365.91 = 26,159.49/x
  3. Step 3: Cross multiply
    68,290.92x = 102,365.91 × 26,159.49
  4. Step 4: Simplify right side
    68,290.92x = 2,677,839,998.99
  5. Step 5: Solve for x
    x = 2,677,839,998.99/68,290.92
  6. Step 6: Final answer
    x = 39,212.24

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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.