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Finding the Fourth Proportional to 445,063.58, 667,585.95 and 108,105.80

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Solution

The fourth proportional to 445,063.58, 667,585.95 and 108,105.80 is: 162,156.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,063.58 : 667,585.95 = 108,105.80 : x
  2. Step 2: Convert to fraction form
    445,063.58/667,585.95 = 108,105.80/x
  3. Step 3: Cross multiply
    445,063.58x = 667,585.95 × 108,105.80
  4. Step 4: Simplify right side
    445,063.58x = 72,169,913,193.51
  5. Step 5: Solve for x
    x = 72,169,913,193.51/445,063.58
  6. Step 6: Final answer
    x = 162,156.41

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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.