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Finding the Fourth Proportional to 293,456.88, 405,066.96 and 172,593

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Solution

The fourth proportional to 293,456.88, 405,066.96 and 172,593 is: 238,235.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,456.88 : 405,066.96 = 172,593 : x
  2. Step 2: Convert to fraction form
    293,456.88/405,066.96 = 172,593/x
  3. Step 3: Cross multiply
    293,456.88x = 405,066.96 × 172,593
  4. Step 4: Simplify right side
    293,456.88x = 69,911,721,827.28
  5. Step 5: Solve for x
    x = 69,911,721,827.28/293,456.88
  6. Step 6: Final answer
    x = 238,235.08

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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.