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Finding the Fourth Proportional to 171,962.87, 257,844.92 and 66,658.82

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Solution

The fourth proportional to 171,962.87, 257,844.92 and 66,658.82 is: 99,949.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,962.87 : 257,844.92 = 66,658.82 : x
  2. Step 2: Convert to fraction form
    171,962.87/257,844.92 = 66,658.82/x
  3. Step 3: Cross multiply
    171,962.87x = 257,844.92 × 66,658.82
  4. Step 4: Simplify right side
    171,962.87x = 17,187,636,487.68
  5. Step 5: Solve for x
    x = 17,187,636,487.68/171,962.87
  6. Step 6: Final answer
    x = 99,949.70

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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.