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Finding the Fourth Proportional to 376,523.64, 564,768.18 and 127,207.80

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Solution

The fourth proportional to 376,523.64, 564,768.18 and 127,207.80 is: 190,805.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,523.64 : 564,768.18 = 127,207.80 : x
  2. Step 2: Convert to fraction form
    376,523.64/564,768.18 = 127,207.80/x
  3. Step 3: Cross multiply
    376,523.64x = 564,768.18 × 127,207.80
  4. Step 4: Simplify right side
    376,523.64x = 71,842,917,687.80
  5. Step 5: Solve for x
    x = 71,842,917,687.80/376,523.64
  6. Step 6: Final answer
    x = 190,805.86

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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.