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Finding the Fourth Proportional to 171,465.57, 257,104.40 and 53,104.05

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Solution

The fourth proportional to 171,465.57, 257,104.40 and 53,104.05 is: 79,626.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,465.57 : 257,104.40 = 53,104.05 : x
  2. Step 2: Convert to fraction form
    171,465.57/257,104.40 = 53,104.05/x
  3. Step 3: Cross multiply
    171,465.57x = 257,104.40 × 53,104.05
  4. Step 4: Simplify right side
    171,465.57x = 13,653,284,647.30
  5. Step 5: Solve for x
    x = 13,653,284,647.30/171,465.57
  6. Step 6: Final answer
    x = 79,626.97

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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.