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Finding the Fourth Proportional to 172,814.64, 259,213.32 and 67,652.88

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Solution

The fourth proportional to 172,814.64, 259,213.32 and 67,652.88 is: 101,475.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,814.64 : 259,213.32 = 67,652.88 : x
  2. Step 2: Convert to fraction form
    172,814.64/259,213.32 = 67,652.88/x
  3. Step 3: Cross multiply
    172,814.64x = 259,213.32 × 67,652.88
  4. Step 4: Simplify right side
    172,814.64x = 17,536,527,632.36
  5. Step 5: Solve for x
    x = 17,536,527,632.36/172,814.64
  6. Step 6: Final answer
    x = 101,475.94

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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.