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Finding the Fourth Proportional to 104,768.21, 144,583.20 and 57,024.65

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Solution

The fourth proportional to 104,768.21, 144,583.20 and 57,024.65 is: 78,695.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,768.21 : 144,583.20 = 57,024.65 : x
  2. Step 2: Convert to fraction form
    104,768.21/144,583.20 = 57,024.65/x
  3. Step 3: Cross multiply
    104,768.21x = 144,583.20 × 57,024.65
  4. Step 4: Simplify right side
    104,768.21x = 8,244,806,375.88
  5. Step 5: Solve for x
    x = 8,244,806,375.88/104,768.21
  6. Step 6: Final answer
    x = 78,695.69

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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.