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Finding the Fourth Proportional to 104,953.62, 144,835.79 and 57,206.82

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Solution

The fourth proportional to 104,953.62, 144,835.79 and 57,206.82 is: 78,945.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,953.62 : 144,835.79 = 57,206.82 : x
  2. Step 2: Convert to fraction form
    104,953.62/144,835.79 = 57,206.82/x
  3. Step 3: Cross multiply
    104,953.62x = 144,835.79 × 57,206.82
  4. Step 4: Simplify right side
    104,953.62x = 8,285,594,682.05
  5. Step 5: Solve for x
    x = 8,285,594,682.05/104,953.62
  6. Step 6: Final answer
    x = 78,945.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.