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Finding the Fourth Proportional to 168,618, 252,941.58 and 43,959

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Solution

The fourth proportional to 168,618, 252,941.58 and 43,959 is: 65,942.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,618 : 252,941.58 = 43,959 : x
  2. Step 2: Convert to fraction form
    168,618/252,941.58 = 43,959/x
  3. Step 3: Cross multiply
    168,618x = 252,941.58 × 43,959
  4. Step 4: Simplify right side
    168,618x = 11,119,058,915.22
  5. Step 5: Solve for x
    x = 11,119,058,915.22/168,618
  6. Step 6: Final answer
    x = 65,942.30

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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.