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Finding the Fourth Proportional to 351,995.76, 527,760.39 and 127,326.66

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Solution

The fourth proportional to 351,995.76, 527,760.39 and 127,326.66 is: 190,905.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,995.76 : 527,760.39 = 127,326.66 : x
  2. Step 2: Convert to fraction form
    351,995.76/527,760.39 = 127,326.66/x
  3. Step 3: Cross multiply
    351,995.76x = 527,760.39 × 127,326.66
  4. Step 4: Simplify right side
    351,995.76x = 67,197,967,739.00
  5. Step 5: Solve for x
    x = 67,197,967,739.00/351,995.76
  6. Step 6: Final answer
    x = 190,905.62

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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.