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Finding the Fourth Proportional to 395,243.44, 592,959.64 and 129,004.46

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Solution

The fourth proportional to 395,243.44, 592,959.64 and 129,004.46 is: 193,537.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,243.44 : 592,959.64 = 129,004.46 : x
  2. Step 2: Convert to fraction form
    395,243.44/592,959.64 = 129,004.46/x
  3. Step 3: Cross multiply
    395,243.44x = 592,959.64 × 129,004.46
  4. Step 4: Simplify right side
    395,243.44x = 76,494,438,159.99
  5. Step 5: Solve for x
    x = 76,494,438,159.99/395,243.44
  6. Step 6: Final answer
    x = 193,537.53

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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.