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Finding the Fourth Proportional to 171,927.40, 257,891.10 and 53,597.80

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Solution

The fourth proportional to 171,927.40, 257,891.10 and 53,597.80 is: 80,396.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,927.40 : 257,891.10 = 53,597.80 : x
  2. Step 2: Convert to fraction form
    171,927.40/257,891.10 = 53,597.80/x
  3. Step 3: Cross multiply
    171,927.40x = 257,891.10 × 53,597.80
  4. Step 4: Simplify right side
    171,927.40x = 13,822,395,599.58
  5. Step 5: Solve for x
    x = 13,822,395,599.58/171,927.40
  6. Step 6: Final answer
    x = 80,396.70

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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.