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Finding the Fourth Proportional to 445,855.16, 668,793.02 and 108,898.62

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Solution

The fourth proportional to 445,855.16, 668,793.02 and 108,898.62 is: 163,350.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,855.16 : 668,793.02 = 108,898.62 : x
  2. Step 2: Convert to fraction form
    445,855.16/668,793.02 = 108,898.62/x
  3. Step 3: Cross multiply
    445,855.16x = 668,793.02 × 108,898.62
  4. Step 4: Simplify right side
    445,855.16x = 72,830,636,943.63
  5. Step 5: Solve for x
    x = 72,830,636,943.63/445,855.16
  6. Step 6: Final answer
    x = 163,350.44

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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.