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Finding the Fourth Proportional to 121,772.62, 182,676.12 and 37,539.64

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Solution

The fourth proportional to 121,772.62, 182,676.12 and 37,539.64 is: 56,314.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,772.62 : 182,676.12 = 37,539.64 : x
  2. Step 2: Convert to fraction form
    121,772.62/182,676.12 = 37,539.64/x
  3. Step 3: Cross multiply
    121,772.62x = 182,676.12 × 37,539.64
  4. Step 4: Simplify right side
    121,772.62x = 6,857,595,781.40
  5. Step 5: Solve for x
    x = 6,857,595,781.40/121,772.62
  6. Step 6: Final answer
    x = 56,314.76

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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.