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Finding the Fourth Proportional to 172,241.42, 258,311.91 and 67,035.38

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Solution

The fourth proportional to 172,241.42, 258,311.91 and 67,035.38 is: 100,533.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,241.42 : 258,311.91 = 67,035.38 : x
  2. Step 2: Convert to fraction form
    172,241.42/258,311.91 = 67,035.38/x
  3. Step 3: Cross multiply
    172,241.42x = 258,311.91 × 67,035.38
  4. Step 4: Simplify right side
    172,241.42x = 17,316,037,045.38
  5. Step 5: Solve for x
    x = 17,316,037,045.38/172,241.42
  6. Step 6: Final answer
    x = 100,533.52

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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.