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Finding the Fourth Proportional to 173,299.90, 259,959.09 and 54,980.35

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Solution

The fourth proportional to 173,299.90, 259,959.09 and 54,980.35 is: 82,473.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,299.90 : 259,959.09 = 54,980.35 : x
  2. Step 2: Convert to fraction form
    173,299.90/259,959.09 = 54,980.35/x
  3. Step 3: Cross multiply
    173,299.90x = 259,959.09 × 54,980.35
  4. Step 4: Simplify right side
    173,299.90x = 14,292,641,753.88
  5. Step 5: Solve for x
    x = 14,292,641,753.88/173,299.90
  6. Step 6: Final answer
    x = 82,473.46

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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.