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Finding the Fourth Proportional to 178,650.45, 267,805.10 and 66,300.62

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Solution

The fourth proportional to 178,650.45, 267,805.10 and 66,300.62 is: 99,387.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,650.45 : 267,805.10 = 66,300.62 : x
  2. Step 2: Convert to fraction form
    178,650.45/267,805.10 = 66,300.62/x
  3. Step 3: Cross multiply
    178,650.45x = 267,805.10 × 66,300.62
  4. Step 4: Simplify right side
    178,650.45x = 17,755,642,498.63
  5. Step 5: Solve for x
    x = 17,755,642,498.63/178,650.45
  6. Step 6: Final answer
    x = 99,387.62

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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.