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Finding the Fourth Proportional to 173,165.90, 259,712.40 and 73,329.35

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Solution

The fourth proportional to 173,165.90, 259,712.40 and 73,329.35 is: 109,978.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,165.90 : 259,712.40 = 73,329.35 : x
  2. Step 2: Convert to fraction form
    173,165.90/259,712.40 = 73,329.35/x
  3. Step 3: Cross multiply
    173,165.90x = 259,712.40 × 73,329.35
  4. Step 4: Simplify right side
    173,165.90x = 19,044,541,478.94
  5. Step 5: Solve for x
    x = 19,044,541,478.94/173,165.90
  6. Step 6: Final answer
    x = 109,978.59

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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.