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Finding the Fourth Proportional to 171,908.62, 257,862.70 and 65,292.37

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Solution

The fourth proportional to 171,908.62, 257,862.70 and 65,292.37 is: 97,938.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,908.62 : 257,862.70 = 65,292.37 : x
  2. Step 2: Convert to fraction form
    171,908.62/257,862.70 = 65,292.37/x
  3. Step 3: Cross multiply
    171,908.62x = 257,862.70 × 65,292.37
  4. Step 4: Simplify right side
    171,908.62x = 16,836,466,817.60
  5. Step 5: Solve for x
    x = 16,836,466,817.60/171,908.62
  6. Step 6: Final answer
    x = 97,938.47

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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.