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Finding the Fourth Proportional to 238,779.52, 358,189.44 and 72,568.96

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Solution

The fourth proportional to 238,779.52, 358,189.44 and 72,568.96 is: 108,859.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,779.52 : 358,189.44 = 72,568.96 : x
  2. Step 2: Convert to fraction form
    238,779.52/358,189.44 = 72,568.96/x
  3. Step 3: Cross multiply
    238,779.52x = 358,189.44 × 72,568.96
  4. Step 4: Simplify right side
    238,779.52x = 25,993,435,143.78
  5. Step 5: Solve for x
    x = 25,993,435,143.78/238,779.52
  6. Step 6: Final answer
    x = 108,859.57

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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.