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Finding the Fourth Proportional to 170,978,874.80, 256,493,195.40 and 55,935,546.80

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Solution

The fourth proportional to 170,978,874.80, 256,493,195.40 and 55,935,546.80 is: 83,911,460.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,978,874.80 : 256,493,195.40 = 55,935,546.80 : x
  2. Step 2: Convert to fraction form
    170,978,874.80/256,493,195.40 = 55,935,546.80/x
  3. Step 3: Cross multiply
    170,978,874.80x = 256,493,195.40 × 55,935,546.80
  4. Step 4: Simplify right side
    170,978,874.80x = 14,347,087,135,178,244
  5. Step 5: Solve for x
    x = 14,347,087,135,178,244/170,978,874.80
  6. Step 6: Final answer
    x = 83,911,460.71

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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.