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Finding the Fourth Proportional to 319,796.46, 441,319.77 and 176,556.78

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Solution

The fourth proportional to 319,796.46, 441,319.77 and 176,556.78 is: 243,648.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,796.46 : 441,319.77 = 176,556.78 : x
  2. Step 2: Convert to fraction form
    319,796.46/441,319.77 = 176,556.78/x
  3. Step 3: Cross multiply
    319,796.46x = 441,319.77 × 176,556.78
  4. Step 4: Simplify right side
    319,796.46x = 77,917,997,541.54
  5. Step 5: Solve for x
    x = 77,917,997,541.54/319,796.46
  6. Step 6: Final answer
    x = 243,648.72

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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.