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Finding the Fourth Proportional to 393,185.52, 589,779.80 and 119,634.40

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Solution

The fourth proportional to 393,185.52, 589,779.80 and 119,634.40 is: 179,452.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,185.52 : 589,779.80 = 119,634.40 : x
  2. Step 2: Convert to fraction form
    393,185.52/589,779.80 = 119,634.40/x
  3. Step 3: Cross multiply
    393,185.52x = 589,779.80 × 119,634.40
  4. Step 4: Simplify right side
    393,185.52x = 70,557,953,092.80
  5. Step 5: Solve for x
    x = 70,557,953,092.80/393,185.52
  6. Step 6: Final answer
    x = 179,452.06

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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.