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Finding the Fourth Proportional to 188,675.87, 282,816.92 and 76,433.56

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Solution

The fourth proportional to 188,675.87, 282,816.92 and 76,433.56 is: 114,570.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,675.87 : 282,816.92 = 76,433.56 : x
  2. Step 2: Convert to fraction form
    188,675.87/282,816.92 = 76,433.56/x
  3. Step 3: Cross multiply
    188,675.87x = 282,816.92 × 76,433.56
  4. Step 4: Simplify right side
    188,675.87x = 21,616,703,507.88
  5. Step 5: Solve for x
    x = 21,616,703,507.88/188,675.87
  6. Step 6: Final answer
    x = 114,570.58

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1.5x scale

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.