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Finding the Fourth Proportional to 353,339.25, 530,125.52 and 142,862.37

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Solution

The fourth proportional to 353,339.25, 530,125.52 and 142,862.37 is: 214,340.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,339.25 : 530,125.52 = 142,862.37 : x
  2. Step 2: Convert to fraction form
    353,339.25/530,125.52 = 142,862.37/x
  3. Step 3: Cross multiply
    353,339.25x = 530,125.52 × 142,862.37
  4. Step 4: Simplify right side
    353,339.25x = 75,734,987,470.37
  5. Step 5: Solve for x
    x = 75,734,987,470.37/353,339.25
  6. Step 6: Final answer
    x = 214,340.71

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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.