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Finding the Fourth Proportional to 104,525.52, 144,239.78 and 56,778.82

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Solution

The fourth proportional to 104,525.52, 144,239.78 and 56,778.82 is: 78,351.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,525.52 : 144,239.78 = 56,778.82 : x
  2. Step 2: Convert to fraction form
    104,525.52/144,239.78 = 56,778.82/x
  3. Step 3: Cross multiply
    104,525.52x = 144,239.78 × 56,778.82
  4. Step 4: Simplify right side
    104,525.52x = 8,189,764,505.46
  5. Step 5: Solve for x
    x = 8,189,764,505.46/104,525.52
  6. Step 6: Final answer
    x = 78,351.82

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1.5x scale

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.