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Finding the Fourth Proportional to 136,769.52, 205,250.64 and 48,029.94

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Solution

The fourth proportional to 136,769.52, 205,250.64 and 48,029.94 is: 72,078.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,769.52 : 205,250.64 = 48,029.94 : x
  2. Step 2: Convert to fraction form
    136,769.52/205,250.64 = 48,029.94/x
  3. Step 3: Cross multiply
    136,769.52x = 205,250.64 × 48,029.94
  4. Step 4: Simplify right side
    136,769.52x = 9,858,175,924.16
  5. Step 5: Solve for x
    x = 9,858,175,924.16/136,769.52
  6. Step 6: Final answer
    x = 72,078.75

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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.