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Finding the Fourth Proportional to 306,556.92, 459,835.56 and 84,940.92

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Solution

The fourth proportional to 306,556.92, 459,835.56 and 84,940.92 is: 127,411.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,556.92 : 459,835.56 = 84,940.92 : x
  2. Step 2: Convert to fraction form
    306,556.92/459,835.56 = 84,940.92/x
  3. Step 3: Cross multiply
    306,556.92x = 459,835.56 × 84,940.92
  4. Step 4: Simplify right side
    306,556.92x = 39,058,855,515.12
  5. Step 5: Solve for x
    x = 39,058,855,515.12/306,556.92
  6. Step 6: Final answer
    x = 127,411.43

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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.