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Finding the Fourth Proportional to 445,085.01, 667,650.60 and 129,566.52

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Solution

The fourth proportional to 445,085.01, 667,650.60 and 129,566.52 is: 194,356.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,085.01 : 667,650.60 = 129,566.52 : x
  2. Step 2: Convert to fraction form
    445,085.01/667,650.60 = 129,566.52/x
  3. Step 3: Cross multiply
    445,085.01x = 667,650.60 × 129,566.52
  4. Step 4: Simplify right side
    445,085.01x = 86,505,164,817.91
  5. Step 5: Solve for x
    x = 86,505,164,817.91/445,085.01
  6. Step 6: Final answer
    x = 194,356.50

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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.