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Finding the Fourth Proportional to 336,520.65, 504,671.70 and 111,820.74

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Solution

The fourth proportional to 336,520.65, 504,671.70 and 111,820.74 is: 167,694.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,520.65 : 504,671.70 = 111,820.74 : x
  2. Step 2: Convert to fraction form
    336,520.65/504,671.70 = 111,820.74/x
  3. Step 3: Cross multiply
    336,520.65x = 504,671.70 × 111,820.74
  4. Step 4: Simplify right side
    336,520.65x = 56,432,762,951.06
  5. Step 5: Solve for x
    x = 56,432,762,951.06/336,520.65
  6. Step 6: Final answer
    x = 167,694.80

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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.