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Finding the Fourth Proportional to 448,689.43, 672,448.51 and 182,137.87

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Solution

The fourth proportional to 448,689.43, 672,448.51 and 182,137.87 is: 272,969.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,689.43 : 672,448.51 = 182,137.87 : x
  2. Step 2: Convert to fraction form
    448,689.43/672,448.51 = 182,137.87/x
  3. Step 3: Cross multiply
    448,689.43x = 672,448.51 × 182,137.87
  4. Step 4: Simplify right side
    448,689.43x = 122,478,339,296.07
  5. Step 5: Solve for x
    x = 122,478,339,296.07/448,689.43
  6. Step 6: Final answer
    x = 272,969.08

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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.