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Finding the Fourth Proportional to 263,162.88, 363,142.69 and 155,714.08

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Solution

The fourth proportional to 263,162.88, 363,142.69 and 155,714.08 is: 214,872.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,162.88 : 363,142.69 = 155,714.08 : x
  2. Step 2: Convert to fraction form
    263,162.88/363,142.69 = 155,714.08/x
  3. Step 3: Cross multiply
    263,162.88x = 363,142.69 × 155,714.08
  4. Step 4: Simplify right side
    263,162.88x = 56,546,429,882.08
  5. Step 5: Solve for x
    x = 56,546,429,882.08/263,162.88
  6. Step 6: Final answer
    x = 214,872.36

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1.5x scale

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.