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Finding the Fourth Proportional to 395,995.94, 593,933.77 and 129,750.56

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Solution

The fourth proportional to 395,995.94, 593,933.77 and 129,750.56 is: 194,606.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,995.94 : 593,933.77 = 129,750.56 : x
  2. Step 2: Convert to fraction form
    395,995.94/593,933.77 = 129,750.56/x
  3. Step 3: Cross multiply
    395,995.94x = 593,933.77 × 129,750.56
  4. Step 4: Simplify right side
    395,995.94x = 77,063,237,950.34
  5. Step 5: Solve for x
    x = 77,063,237,950.34/395,995.94
  6. Step 6: Final answer
    x = 194,606.13

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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.