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Finding the Fourth Proportional to 68,606.88, 103,082.58 and 43,657.80

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Solution

The fourth proportional to 68,606.88, 103,082.58 and 43,657.80 is: 65,596.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,606.88 : 103,082.58 = 43,657.80 : x
  2. Step 2: Convert to fraction form
    68,606.88/103,082.58 = 43,657.80/x
  3. Step 3: Cross multiply
    68,606.88x = 103,082.58 × 43,657.80
  4. Step 4: Simplify right side
    68,606.88x = 4,500,358,661.12
  5. Step 5: Solve for x
    x = 4,500,358,661.12/68,606.88
  6. Step 6: Final answer
    x = 65,596.32

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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.