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Finding the Fourth Proportional to 168,954.64, 253,488.26 and 56,645.96

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Solution

The fourth proportional to 168,954.64, 253,488.26 and 56,645.96 is: 84,987.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,954.64 : 253,488.26 = 56,645.96 : x
  2. Step 2: Convert to fraction form
    168,954.64/253,488.26 = 56,645.96/x
  3. Step 3: Cross multiply
    168,954.64x = 253,488.26 × 56,645.96
  4. Step 4: Simplify right side
    168,954.64x = 14,359,085,836.43
  5. Step 5: Solve for x
    x = 14,359,085,836.43/168,954.64
  6. Step 6: Final answer
    x = 84,987.82

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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.