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Finding the Fourth Proportional to 445,905.33, 668,856.16 and 161,529.29

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Solution

The fourth proportional to 445,905.33, 668,856.16 and 161,529.29 is: 242,293.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,905.33 : 668,856.16 = 161,529.29 : x
  2. Step 2: Convert to fraction form
    445,905.33/668,856.16 = 161,529.29/x
  3. Step 3: Cross multiply
    445,905.33x = 668,856.16 × 161,529.29
  4. Step 4: Simplify right side
    445,905.33x = 108,039,861,905.24
  5. Step 5: Solve for x
    x = 108,039,861,905.24/445,905.33
  6. Step 6: Final answer
    x = 242,293.27

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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.