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Finding the Fourth Proportional to 102,980.39, 154,493.84 and 55,594.44

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Solution

The fourth proportional to 102,980.39, 154,493.84 and 55,594.44 is: 83,404.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,980.39 : 154,493.84 = 55,594.44 : x
  2. Step 2: Convert to fraction form
    102,980.39/154,493.84 = 55,594.44/x
  3. Step 3: Cross multiply
    102,980.39x = 154,493.84 × 55,594.44
  4. Step 4: Simplify right side
    102,980.39x = 8,588,998,657.24
  5. Step 5: Solve for x
    x = 8,588,998,657.24/102,980.39
  6. Step 6: Final answer
    x = 83,404.22

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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.