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Finding the Fourth Proportional to 69,168.09, 94,829.80 and 67,907.15

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Solution

The fourth proportional to 69,168.09, 94,829.80 and 67,907.15 is: 93,101.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,168.09 : 94,829.80 = 67,907.15 : x
  2. Step 2: Convert to fraction form
    69,168.09/94,829.80 = 67,907.15/x
  3. Step 3: Cross multiply
    69,168.09x = 94,829.80 × 67,907.15
  4. Step 4: Simplify right side
    69,168.09x = 6,439,621,453.07
  5. Step 5: Solve for x
    x = 6,439,621,453.07/69,168.09
  6. Step 6: Final answer
    x = 93,101.04

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.