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Finding the Fourth Proportional to 67,999.50, 102,043.26 and 26,446.50

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Solution

The fourth proportional to 67,999.50, 102,043.26 and 26,446.50 is: 39,686.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,999.50 : 102,043.26 = 26,446.50 : x
  2. Step 2: Convert to fraction form
    67,999.50/102,043.26 = 26,446.50/x
  3. Step 3: Cross multiply
    67,999.50x = 102,043.26 × 26,446.50
  4. Step 4: Simplify right side
    67,999.50x = 2,698,687,075.59
  5. Step 5: Solve for x
    x = 2,698,687,075.59/67,999.50
  6. Step 6: Final answer
    x = 39,686.87

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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.