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Finding the Fourth Proportional to 231,057.78, 346,562.73 and 156,655.86

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Solution

The fourth proportional to 231,057.78, 346,562.73 and 156,655.86 is: 234,967.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,057.78 : 346,562.73 = 156,655.86 : x
  2. Step 2: Convert to fraction form
    231,057.78/346,562.73 = 156,655.86/x
  3. Step 3: Cross multiply
    231,057.78x = 346,562.73 × 156,655.86
  4. Step 4: Simplify right side
    231,057.78x = 54,291,082,512.10
  5. Step 5: Solve for x
    x = 54,291,082,512.10/231,057.78
  6. Step 6: Final answer
    x = 234,967.56

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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.