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Finding the Fourth Proportional to 136,658.40, 204,795.60 and 108,626.40

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Solution

The fourth proportional to 136,658.40, 204,795.60 and 108,626.40 is: 162,786.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,658.40 : 204,795.60 = 108,626.40 : x
  2. Step 2: Convert to fraction form
    136,658.40/204,795.60 = 108,626.40/x
  3. Step 3: Cross multiply
    136,658.40x = 204,795.60 × 108,626.40
  4. Step 4: Simplify right side
    136,658.40x = 22,246,208,763.84
  5. Step 5: Solve for x
    x = 22,246,208,763.84/136,658.40
  6. Step 6: Final answer
    x = 162,786.98

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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.