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Finding the Fourth Proportional to 424,558.67, 636,844.47 and 109,008.59

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Solution

The fourth proportional to 424,558.67, 636,844.47 and 109,008.59 is: 163,514.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,558.67 : 636,844.47 = 109,008.59 : x
  2. Step 2: Convert to fraction form
    424,558.67/636,844.47 = 109,008.59/x
  3. Step 3: Cross multiply
    424,558.67x = 636,844.47 × 109,008.59
  4. Step 4: Simplify right side
    424,558.67x = 69,421,514,539.78
  5. Step 5: Solve for x
    x = 69,421,514,539.78/424,558.67
  6. Step 6: Final answer
    x = 163,514.54

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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.