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Finding the Fourth Proportional to 114,604.80, 171,907.20 and 112,855.20

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Solution

The fourth proportional to 114,604.80, 171,907.20 and 112,855.20 is: 169,282.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,604.80 : 171,907.20 = 112,855.20 : x
  2. Step 2: Convert to fraction form
    114,604.80/171,907.20 = 112,855.20/x
  3. Step 3: Cross multiply
    114,604.80x = 171,907.20 × 112,855.20
  4. Step 4: Simplify right side
    114,604.80x = 19,400,621,437.44
  5. Step 5: Solve for x
    x = 19,400,621,437.44/114,604.80
  6. Step 6: Final answer
    x = 169,282.80

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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.