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Finding the Fourth Proportional to 173,078.60, 259,644.63 and 73,239.35

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Solution

The fourth proportional to 173,078.60, 259,644.63 and 73,239.35 is: 109,870.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,078.60 : 259,644.63 = 73,239.35 : x
  2. Step 2: Convert to fraction form
    173,078.60/259,644.63 = 73,239.35/x
  3. Step 3: Cross multiply
    173,078.60x = 259,644.63 × 73,239.35
  4. Step 4: Simplify right side
    173,078.60x = 19,016,203,932.19
  5. Step 5: Solve for x
    x = 19,016,203,932.19/173,078.60
  6. Step 6: Final answer
    x = 109,870.34

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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.