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Finding the Fourth Proportional to 68,485.88, 94,521.36 and 41,636.80

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Solution

The fourth proportional to 68,485.88, 94,521.36 and 41,636.80 is: 57,465.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,485.88 : 94,521.36 = 41,636.80 : x
  2. Step 2: Convert to fraction form
    68,485.88/94,521.36 = 41,636.80/x
  3. Step 3: Cross multiply
    68,485.88x = 94,521.36 × 41,636.80
  4. Step 4: Simplify right side
    68,485.88x = 3,935,566,962.05
  5. Step 5: Solve for x
    x = 3,935,566,962.05/68,485.88
  6. Step 6: Final answer
    x = 57,465.38

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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.