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Finding the Fourth Proportional to 424,577.60, 636,872.90 and 109,027.52

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Solution

The fourth proportional to 424,577.60, 636,872.90 and 109,027.52 is: 163,542.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,577.60 : 636,872.90 = 109,027.52 : x
  2. Step 2: Convert to fraction form
    424,577.60/636,872.90 = 109,027.52/x
  3. Step 3: Cross multiply
    424,577.60x = 636,872.90 × 109,027.52
  4. Step 4: Simplify right side
    424,577.60x = 69,436,669,112.71
  5. Step 5: Solve for x
    x = 69,436,669,112.71/424,577.60
  6. Step 6: Final answer
    x = 163,542.94

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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.