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Finding the Fourth Proportional to 121,862.88, 182,835.81 and 65,708.37

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Solution

The fourth proportional to 121,862.88, 182,835.81 and 65,708.37 is: 98,584.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,862.88 : 182,835.81 = 65,708.37 : x
  2. Step 2: Convert to fraction form
    121,862.88/182,835.81 = 65,708.37/x
  3. Step 3: Cross multiply
    121,862.88x = 182,835.81 × 65,708.37
  4. Step 4: Simplify right side
    121,862.88x = 12,013,843,052.73
  5. Step 5: Solve for x
    x = 12,013,843,052.73/121,862.88
  6. Step 6: Final answer
    x = 98,584.93

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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.