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Finding the Fourth Proportional to 351,996.80, 528,124.80 and 115,347.20

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Solution

The fourth proportional to 351,996.80, 528,124.80 and 115,347.20 is: 173,063.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,996.80 : 528,124.80 = 115,347.20 : x
  2. Step 2: Convert to fraction form
    351,996.80/528,124.80 = 115,347.20/x
  3. Step 3: Cross multiply
    351,996.80x = 528,124.80 × 115,347.20
  4. Step 4: Simplify right side
    351,996.80x = 60,917,716,930.56
  5. Step 5: Solve for x
    x = 60,917,716,930.56/351,996.80
  6. Step 6: Final answer
    x = 173,063.27

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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.