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Finding the Fourth Proportional to 171,863.80, 257,795.70 and 93,131.80

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Solution

The fourth proportional to 171,863.80, 257,795.70 and 93,131.80 is: 139,697.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,863.80 : 257,795.70 = 93,131.80 : x
  2. Step 2: Convert to fraction form
    171,863.80/257,795.70 = 93,131.80/x
  3. Step 3: Cross multiply
    171,863.80x = 257,795.70 × 93,131.80
  4. Step 4: Simplify right side
    171,863.80x = 24,008,977,573.26
  5. Step 5: Solve for x
    x = 24,008,977,573.26/171,863.80
  6. Step 6: Final answer
    x = 139,697.70

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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.