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Finding the Fourth Proportional to 448,672.10, 672,862.55 and 149,072.24

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Solution

The fourth proportional to 448,672.10, 672,862.55 and 149,072.24 is: 223,559.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,672.10 : 672,862.55 = 149,072.24 : x
  2. Step 2: Convert to fraction form
    448,672.10/672,862.55 = 149,072.24/x
  3. Step 3: Cross multiply
    448,672.10x = 672,862.55 × 149,072.24
  4. Step 4: Simplify right side
    448,672.10x = 100,305,128,477.41
  5. Step 5: Solve for x
    x = 100,305,128,477.41/448,672.10
  6. Step 6: Final answer
    x = 223,559.99

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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.