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Finding the Fourth Proportional to 68,241.44, 102,373.29 and 21,483.38

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Solution

The fourth proportional to 68,241.44, 102,373.29 and 21,483.38 is: 32,228.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,241.44 : 102,373.29 = 21,483.38 : x
  2. Step 2: Convert to fraction form
    68,241.44/102,373.29 = 21,483.38/x
  3. Step 3: Cross multiply
    68,241.44x = 102,373.29 × 21,483.38
  4. Step 4: Simplify right side
    68,241.44x = 2,199,323,779.05
  5. Step 5: Solve for x
    x = 2,199,323,779.05/68,241.44
  6. Step 6: Final answer
    x = 32,228.57

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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.