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Finding the Fourth Proportional to 178,385.25, 267,577.88 and 45,266.21

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Solution

The fourth proportional to 178,385.25, 267,577.88 and 45,266.21 is: 67,899.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,385.25 : 267,577.88 = 45,266.21 : x
  2. Step 2: Convert to fraction form
    178,385.25/267,577.88 = 45,266.21/x
  3. Step 3: Cross multiply
    178,385.25x = 267,577.88 × 45,266.21
  4. Step 4: Simplify right side
    178,385.25x = 12,112,234,943.21
  5. Step 5: Solve for x
    x = 12,112,234,943.21/178,385.25
  6. Step 6: Final answer
    x = 67,899.31

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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.