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Finding the Fourth Proportional to 123,892.26, 170,971.38 and 67,303.68

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Solution

The fourth proportional to 123,892.26, 170,971.38 and 67,303.68 is: 92,879.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,892.26 : 170,971.38 = 67,303.68 : x
  2. Step 2: Convert to fraction form
    123,892.26/170,971.38 = 67,303.68/x
  3. Step 3: Cross multiply
    123,892.26x = 170,971.38 × 67,303.68
  4. Step 4: Simplify right side
    123,892.26x = 11,507,003,048.68
  5. Step 5: Solve for x
    x = 11,507,003,048.68/123,892.26
  6. Step 6: Final answer
    x = 92,879.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.