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Finding the Fourth Proportional to 164,087.78, 246,131.70 and 53,279.78

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Solution

The fourth proportional to 164,087.78, 246,131.70 and 53,279.78 is: 79,919.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,087.78 : 246,131.70 = 53,279.78 : x
  2. Step 2: Convert to fraction form
    164,087.78/246,131.70 = 53,279.78/x
  3. Step 3: Cross multiply
    164,087.78x = 246,131.70 × 53,279.78
  4. Step 4: Simplify right side
    164,087.78x = 13,113,842,827.03
  5. Step 5: Solve for x
    x = 13,113,842,827.03/164,087.78
  6. Step 6: Final answer
    x = 79,919.68

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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.