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Finding the Fourth Proportional to 136,606.45, 204,860.46 and 57,726.85

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Solution

The fourth proportional to 136,606.45, 204,860.46 and 57,726.85 is: 86,569.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,606.45 : 204,860.46 = 57,726.85 : x
  2. Step 2: Convert to fraction form
    136,606.45/204,860.46 = 57,726.85/x
  3. Step 3: Cross multiply
    136,606.45x = 204,860.46 × 57,726.85
  4. Step 4: Simplify right side
    136,606.45x = 11,825,949,045.35
  5. Step 5: Solve for x
    x = 11,825,949,045.35/136,606.45
  6. Step 6: Final answer
    x = 86,569.48

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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.