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Finding the Fourth Proportional to 238,467.20, 356,779.20 and 155,523.20

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Solution

The fourth proportional to 238,467.20, 356,779.20 and 155,523.20 is: 232,683.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,467.20 : 356,779.20 = 155,523.20 : x
  2. Step 2: Convert to fraction form
    238,467.20/356,779.20 = 155,523.20/x
  3. Step 3: Cross multiply
    238,467.20x = 356,779.20 × 155,523.20
  4. Step 4: Simplify right side
    238,467.20x = 55,487,442,877.44
  5. Step 5: Solve for x
    x = 55,487,442,877.44/238,467.20
  6. Step 6: Final answer
    x = 232,683.75

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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.