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Finding the Fourth Proportional to 162,907.20, 224,998.56 and 129,781.44

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Solution

The fourth proportional to 162,907.20, 224,998.56 and 129,781.44 is: 179,247.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,907.20 : 224,998.56 = 129,781.44 : x
  2. Step 2: Convert to fraction form
    162,907.20/224,998.56 = 129,781.44/x
  3. Step 3: Cross multiply
    162,907.20x = 224,998.56 × 129,781.44
  4. Step 4: Simplify right side
    162,907.20x = 29,200,637,114.73
  5. Step 5: Solve for x
    x = 29,200,637,114.73/162,907.20
  6. Step 6: Final answer
    x = 179,247.06

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.