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Finding the Fourth Proportional to 445,787.73, 668,679.23 and 108,830.16

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Solution

The fourth proportional to 445,787.73, 668,679.23 and 108,830.16 is: 163,244.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,787.73 : 668,679.23 = 108,830.16 : x
  2. Step 2: Convert to fraction form
    445,787.73/668,679.23 = 108,830.16/x
  3. Step 3: Cross multiply
    445,787.73x = 668,679.23 × 108,830.16
  4. Step 4: Simplify right side
    445,787.73x = 72,772,467,861.65
  5. Step 5: Solve for x
    x = 72,772,467,861.65/445,787.73
  6. Step 6: Final answer
    x = 163,244.66

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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.