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Finding the Fourth Proportional to 262,852.72, 394,292.04 and 73,312.72

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Solution

The fourth proportional to 262,852.72, 394,292.04 and 73,312.72 is: 109,972.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,852.72 : 394,292.04 = 73,312.72 : x
  2. Step 2: Convert to fraction form
    262,852.72/394,292.04 = 73,312.72/x
  3. Step 3: Cross multiply
    262,852.72x = 394,292.04 × 73,312.72
  4. Step 4: Simplify right side
    262,852.72x = 28,906,619,588.73
  5. Step 5: Solve for x
    x = 28,906,619,588.73/262,852.72
  6. Step 6: Final answer
    x = 109,972.69

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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.