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Finding the Fourth Proportional to 395,643.91, 593,516.15 and 125,675.73

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Solution

The fourth proportional to 395,643.91, 593,516.15 and 125,675.73 is: 188,529.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,643.91 : 593,516.15 = 125,675.73 : x
  2. Step 2: Convert to fraction form
    395,643.91/593,516.15 = 125,675.73/x
  3. Step 3: Cross multiply
    395,643.91x = 593,516.15 × 125,675.73
  4. Step 4: Simplify right side
    395,643.91x = 74,590,575,418.04
  5. Step 5: Solve for x
    x = 74,590,575,418.04/395,643.91
  6. Step 6: Final answer
    x = 188,529.57

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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.