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Finding the Fourth Proportional to 300,125.37, 414,186.30 and 172,841.97

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Solution

The fourth proportional to 300,125.37, 414,186.30 and 172,841.97 is: 238,529.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,125.37 : 414,186.30 = 172,841.97 : x
  2. Step 2: Convert to fraction form
    300,125.37/414,186.30 = 172,841.97/x
  3. Step 3: Cross multiply
    300,125.37x = 414,186.30 × 172,841.97
  4. Step 4: Simplify right side
    300,125.37x = 71,588,776,039.01
  5. Step 5: Solve for x
    x = 71,588,776,039.01/300,125.37
  6. Step 6: Final answer
    x = 238,529.57

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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.