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Finding the Fourth Proportional to 347,335.13, 479,322.47 and 188,359.13

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Solution

The fourth proportional to 347,335.13, 479,322.47 and 188,359.13 is: 259,935.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,335.13 : 479,322.47 = 188,359.13 : x
  2. Step 2: Convert to fraction form
    347,335.13/479,322.47 = 188,359.13/x
  3. Step 3: Cross multiply
    347,335.13x = 479,322.47 × 188,359.13
  4. Step 4: Simplify right side
    347,335.13x = 90,284,761,512.94
  5. Step 5: Solve for x
    x = 90,284,761,512.94/347,335.13
  6. Step 6: Final answer
    x = 259,935.59

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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.