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Finding the Fourth Proportional to 448,464.12, 672,698.61 and 111,504.78

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Solution

The fourth proportional to 448,464.12, 672,698.61 and 111,504.78 is: 167,257.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,464.12 : 672,698.61 = 111,504.78 : x
  2. Step 2: Convert to fraction form
    448,464.12/672,698.61 = 111,504.78/x
  3. Step 3: Cross multiply
    448,464.12x = 672,698.61 × 111,504.78
  4. Step 4: Simplify right side
    448,464.12x = 75,009,110,514.36
  5. Step 5: Solve for x
    x = 75,009,110,514.36/448,464.12
  6. Step 6: Final answer
    x = 167,257.77

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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.