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Finding the Fourth Proportional to 171,863.55, 257,934.29 and 118,523.07

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Solution

The fourth proportional to 171,863.55, 257,934.29 and 118,523.07 is: 177,880.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,863.55 : 257,934.29 = 118,523.07 : x
  2. Step 2: Convert to fraction form
    171,863.55/257,934.29 = 118,523.07/x
  3. Step 3: Cross multiply
    171,863.55x = 257,934.29 × 118,523.07
  4. Step 4: Simplify right side
    171,863.55x = 30,571,163,316.46
  5. Step 5: Solve for x
    x = 30,571,163,316.46/171,863.55
  6. Step 6: Final answer
    x = 177,880.44

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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.