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Finding the Fourth Proportional to 68,157.55, 102,259.26 and 34,868.68

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Solution

The fourth proportional to 68,157.55, 102,259.26 and 34,868.68 is: 52,314.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,157.55 : 102,259.26 = 34,868.68 : x
  2. Step 2: Convert to fraction form
    68,157.55/102,259.26 = 34,868.68/x
  3. Step 3: Cross multiply
    68,157.55x = 102,259.26 × 34,868.68
  4. Step 4: Simplify right side
    68,157.55x = 3,565,645,158.33
  5. Step 5: Solve for x
    x = 3,565,645,158.33/68,157.55
  6. Step 6: Final answer
    x = 52,314.75

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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.