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Finding the Fourth Proportional to 171,636.70, 257,455.05 and 92,904.70

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Solution

The fourth proportional to 171,636.70, 257,455.05 and 92,904.70 is: 139,357.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,636.70 : 257,455.05 = 92,904.70 : x
  2. Step 2: Convert to fraction form
    171,636.70/257,455.05 = 92,904.70/x
  3. Step 3: Cross multiply
    171,636.70x = 257,455.05 × 92,904.70
  4. Step 4: Simplify right side
    171,636.70x = 23,918,784,183.74
  5. Step 5: Solve for x
    x = 23,918,784,183.74/171,636.70
  6. Step 6: Final answer
    x = 139,357.05

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1.5x scale

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.