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Finding the Fourth Proportional to 171,491.84, 257,237.87 and 71,597.58

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Solution

The fourth proportional to 171,491.84, 257,237.87 and 71,597.58 is: 107,396.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,491.84 : 257,237.87 = 71,597.58 : x
  2. Step 2: Convert to fraction form
    171,491.84/257,237.87 = 71,597.58/x
  3. Step 3: Cross multiply
    171,491.84x = 257,237.87 × 71,597.58
  4. Step 4: Simplify right side
    171,491.84x = 18,417,608,618.37
  5. Step 5: Solve for x
    x = 18,417,608,618.37/171,491.84
  6. Step 6: Final answer
    x = 107,396.41

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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.