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Finding the Fourth Proportional to 136,579.70, 204,881.70 and 52,336.46

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Solution

The fourth proportional to 136,579.70, 204,881.70 and 52,336.46 is: 78,509.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,579.70 : 204,881.70 = 52,336.46 : x
  2. Step 2: Convert to fraction form
    136,579.70/204,881.70 = 52,336.46/x
  3. Step 3: Cross multiply
    136,579.70x = 204,881.70 × 52,336.46
  4. Step 4: Simplify right side
    136,579.70x = 10,722,782,896.78
  5. Step 5: Solve for x
    x = 10,722,782,896.78/136,579.70
  6. Step 6: Final answer
    x = 78,509.35

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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.