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Finding the Fourth Proportional to 134,415.73, 201,571.75 and 45,648.37

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Solution

The fourth proportional to 134,415.73, 201,571.75 and 45,648.37 is: 68,454.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,415.73 : 201,571.75 = 45,648.37 : x
  2. Step 2: Convert to fraction form
    134,415.73/201,571.75 = 45,648.37/x
  3. Step 3: Cross multiply
    134,415.73x = 201,571.75 × 45,648.37
  4. Step 4: Simplify right side
    134,415.73x = 9,201,421,825.55
  5. Step 5: Solve for x
    x = 9,201,421,825.55/134,415.73
  6. Step 6: Final answer
    x = 68,454.95

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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.