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Finding the Fourth Proportional to 68,075.46, 93,918.06 and 50,213.16

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Solution

The fourth proportional to 68,075.46, 93,918.06 and 50,213.16 is: 69,274.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,075.46 : 93,918.06 = 50,213.16 : x
  2. Step 2: Convert to fraction form
    68,075.46/93,918.06 = 50,213.16/x
  3. Step 3: Cross multiply
    68,075.46x = 93,918.06 × 50,213.16
  4. Step 4: Simplify right side
    68,075.46x = 4,715,922,573.67
  5. Step 5: Solve for x
    x = 4,715,922,573.67/68,075.46
  6. Step 6: Final answer
    x = 69,274.93

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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.