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Finding the Fourth Proportional to 311,068.90, 466,402.46 and 170,789.86

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Solution

The fourth proportional to 311,068.90, 466,402.46 and 170,789.86 is: 256,074.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,068.90 : 466,402.46 = 170,789.86 : x
  2. Step 2: Convert to fraction form
    311,068.90/466,402.46 = 170,789.86/x
  3. Step 3: Cross multiply
    311,068.90x = 466,402.46 × 170,789.86
  4. Step 4: Simplify right side
    311,068.90x = 79,656,810,847.06
  5. Step 5: Solve for x
    x = 79,656,810,847.06/311,068.90
  6. Step 6: Final answer
    x = 256,074.49

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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.