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Finding the Fourth Proportional to 445,117.66, 667,677.34 and 108,158.60

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Solution

The fourth proportional to 445,117.66, 667,677.34 and 108,158.60 is: 162,238.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,117.66 : 667,677.34 = 108,158.60 : x
  2. Step 2: Convert to fraction form
    445,117.66/667,677.34 = 108,158.60/x
  3. Step 3: Cross multiply
    445,117.66x = 667,677.34 × 108,158.60
  4. Step 4: Simplify right side
    445,117.66x = 72,215,046,346.12
  5. Step 5: Solve for x
    x = 72,215,046,346.12/445,117.66
  6. Step 6: Final answer
    x = 162,238.11

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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.