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Finding the Fourth Proportional to 372,348.94, 558,523.44 and 172,643.05

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Solution

The fourth proportional to 372,348.94, 558,523.44 and 172,643.05 is: 258,964.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,348.94 : 558,523.44 = 172,643.05 : x
  2. Step 2: Convert to fraction form
    372,348.94/558,523.44 = 172,643.05/x
  3. Step 3: Cross multiply
    372,348.94x = 558,523.44 × 172,643.05
  4. Step 4: Simplify right side
    372,348.94x = 96,425,190,178.09
  5. Step 5: Solve for x
    x = 96,425,190,178.09/372,348.94
  6. Step 6: Final answer
    x = 258,964.59

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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.