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Finding the Fourth Proportional to 169,022.94, 253,452.40 and 84,746.90

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Solution

The fourth proportional to 169,022.94, 253,452.40 and 84,746.90 is: 127,079.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,022.94 : 253,452.40 = 84,746.90 : x
  2. Step 2: Convert to fraction form
    169,022.94/253,452.40 = 84,746.90/x
  3. Step 3: Cross multiply
    169,022.94x = 253,452.40 × 84,746.90
  4. Step 4: Simplify right side
    169,022.94x = 21,479,305,197.56
  5. Step 5: Solve for x
    x = 21,479,305,197.56/169,022.94
  6. Step 6: Final answer
    x = 127,079.23

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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.