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Finding the Fourth Proportional to 136,603.54, 204,905.31 and 36,763.95

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Solution

The fourth proportional to 136,603.54, 204,905.31 and 36,763.95 is: 55,145.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,603.54 : 204,905.31 = 36,763.95 : x
  2. Step 2: Convert to fraction form
    136,603.54/204,905.31 = 36,763.95/x
  3. Step 3: Cross multiply
    136,603.54x = 204,905.31 × 36,763.95
  4. Step 4: Simplify right side
    136,603.54x = 7,533,128,571.57
  5. Step 5: Solve for x
    x = 7,533,128,571.57/136,603.54
  6. Step 6: Final answer
    x = 55,145.93

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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.