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Finding the Fourth Proportional to 71,418.80, 107,094.62 and 26,409.06

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Solution

The fourth proportional to 71,418.80, 107,094.62 and 26,409.06 is: 39,601.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,418.80 : 107,094.62 = 26,409.06 : x
  2. Step 2: Convert to fraction form
    71,418.80/107,094.62 = 26,409.06/x
  3. Step 3: Cross multiply
    71,418.80x = 107,094.62 × 26,409.06
  4. Step 4: Simplify right side
    71,418.80x = 2,828,268,311.28
  5. Step 5: Solve for x
    x = 2,828,268,311.28/71,418.80
  6. Step 6: Final answer
    x = 39,601.17

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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.