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Finding the Fourth Proportional to 215,790.60, 323,732.60 and 82,670.85

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Solution

The fourth proportional to 215,790.60, 323,732.60 and 82,670.85 is: 124,024.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,790.60 : 323,732.60 = 82,670.85 : x
  2. Step 2: Convert to fraction form
    215,790.60/323,732.60 = 82,670.85/x
  3. Step 3: Cross multiply
    215,790.60x = 323,732.60 × 82,670.85
  4. Step 4: Simplify right side
    215,790.60x = 26,763,248,801.36
  5. Step 5: Solve for x
    x = 26,763,248,801.36/215,790.60
  6. Step 6: Final answer
    x = 124,024.16

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1.5x scale

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.