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Finding the Fourth Proportional to 171,578.30, 257,401.47 and 53,244.59

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Solution

The fourth proportional to 171,578.30, 257,401.47 and 53,244.59 is: 79,877.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,578.30 : 257,401.47 = 53,244.59 : x
  2. Step 2: Convert to fraction form
    171,578.30/257,401.47 = 53,244.59/x
  3. Step 3: Cross multiply
    171,578.30x = 257,401.47 × 53,244.59
  4. Step 4: Simplify right side
    171,578.30x = 13,705,234,448.54
  5. Step 5: Solve for x
    x = 13,705,234,448.54/171,578.30
  6. Step 6: Final answer
    x = 79,877.44

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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.