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Finding the Fourth Proportional to 363,981.10, 545,973.05 and 111,260.62

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Solution

The fourth proportional to 363,981.10, 545,973.05 and 111,260.62 is: 166,891.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,981.10 : 545,973.05 = 111,260.62 : x
  2. Step 2: Convert to fraction form
    363,981.10/545,973.05 = 111,260.62/x
  3. Step 3: Cross multiply
    363,981.10x = 545,973.05 × 111,260.62
  4. Step 4: Simplify right side
    363,981.10x = 60,745,298,542.28
  5. Step 5: Solve for x
    x = 60,745,298,542.28/363,981.10
  6. Step 6: Final answer
    x = 166,891.35

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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.