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Finding the Fourth Proportional to 448,772.58, 672,983.91 and 168,136.74

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Solution

The fourth proportional to 448,772.58, 672,983.91 and 168,136.74 is: 252,139.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,772.58 : 672,983.91 = 168,136.74 : x
  2. Step 2: Convert to fraction form
    448,772.58/672,983.91 = 168,136.74/x
  3. Step 3: Cross multiply
    448,772.58x = 672,983.91 × 168,136.74
  4. Step 4: Simplify right side
    448,772.58x = 113,153,320,699.85
  5. Step 5: Solve for x
    x = 113,153,320,699.85/448,772.58
  6. Step 6: Final answer
    x = 252,139.56

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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.