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Finding the Fourth Proportional to 448,700.99, 672,854.40 and 168,021.41

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Solution

The fourth proportional to 448,700.99, 672,854.40 and 168,021.41 is: 251,958.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,700.99 : 672,854.40 = 168,021.41 : x
  2. Step 2: Convert to fraction form
    448,700.99/672,854.40 = 168,021.41/x
  3. Step 3: Cross multiply
    448,700.99x = 672,854.40 × 168,021.41
  4. Step 4: Simplify right side
    448,700.99x = 113,053,941,648.43
  5. Step 5: Solve for x
    x = 113,053,941,648.43/448,700.99
  6. Step 6: Final answer
    x = 251,958.31

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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.