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Finding the Fourth Proportional to 99,951.75, 149,927.65 and 26,079.75

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Solution

The fourth proportional to 99,951.75, 149,927.65 and 26,079.75 is: 39,119.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,951.75 : 149,927.65 = 26,079.75 : x
  2. Step 2: Convert to fraction form
    99,951.75/149,927.65 = 26,079.75/x
  3. Step 3: Cross multiply
    99,951.75x = 149,927.65 × 26,079.75
  4. Step 4: Simplify right side
    99,951.75x = 3,910,075,564.89
  5. Step 5: Solve for x
    x = 3,910,075,564.89/99,951.75
  6. Step 6: Final answer
    x = 39,119.63

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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.