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Finding the Fourth Proportional to 171,364.80, 236,162.88 and 123,536.64

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Solution

The fourth proportional to 171,364.80, 236,162.88 and 123,536.64 is: 170,249.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,364.80 : 236,162.88 = 123,536.64 : x
  2. Step 2: Convert to fraction form
    171,364.80/236,162.88 = 123,536.64/x
  3. Step 3: Cross multiply
    171,364.80x = 236,162.88 × 123,536.64
  4. Step 4: Simplify right side
    171,364.80x = 29,174,768,687.92
  5. Step 5: Solve for x
    x = 29,174,768,687.92/171,364.80
  6. Step 6: Final answer
    x = 170,249.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.