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Finding the Fourth Proportional to 313,937.30, 433,234.41 and 170,697.90

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Solution

The fourth proportional to 313,937.30, 433,234.41 and 170,697.90 is: 235,563.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,937.30 : 433,234.41 = 170,697.90 : x
  2. Step 2: Convert to fraction form
    313,937.30/433,234.41 = 170,697.90/x
  3. Step 3: Cross multiply
    313,937.30x = 433,234.41 × 170,697.90
  4. Step 4: Simplify right side
    313,937.30x = 73,952,203,994.74
  5. Step 5: Solve for x
    x = 73,952,203,994.74/313,937.30
  6. Step 6: Final answer
    x = 235,563.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.