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Finding the Fourth Proportional to 192,075.22, 287,916 and 73,714.78

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Solution

The fourth proportional to 192,075.22, 287,916 and 73,714.78 is: 110,496.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,075.22 : 287,916 = 73,714.78 : x
  2. Step 2: Convert to fraction form
    192,075.22/287,916 = 73,714.78/x
  3. Step 3: Cross multiply
    192,075.22x = 287,916 × 73,714.78
  4. Step 4: Simplify right side
    192,075.22x = 21,223,664,598.48
  5. Step 5: Solve for x
    x = 21,223,664,598.48/192,075.22
  6. Step 6: Final answer
    x = 110,496.63

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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.