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Finding the Fourth Proportional to 251,169.60, 376,408.80 and 166,689.60

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Solution

The fourth proportional to 251,169.60, 376,408.80 and 166,689.60 is: 249,805.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,169.60 : 376,408.80 = 166,689.60 : x
  2. Step 2: Convert to fraction form
    251,169.60/376,408.80 = 166,689.60/x
  3. Step 3: Cross multiply
    251,169.60x = 376,408.80 × 166,689.60
  4. Step 4: Simplify right side
    251,169.60x = 62,743,432,308.48
  5. Step 5: Solve for x
    x = 62,743,432,308.48/251,169.60
  6. Step 6: Final answer
    x = 249,805.04

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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.