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Finding the Fourth Proportional to 445,783.60, 668,673.04 and 108,826.04

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Solution

The fourth proportional to 445,783.60, 668,673.04 and 108,826.04 is: 163,238.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,783.60 : 668,673.04 = 108,826.04 : x
  2. Step 2: Convert to fraction form
    445,783.60/668,673.04 = 108,826.04/x
  3. Step 3: Cross multiply
    445,783.60x = 668,673.04 × 108,826.04
  4. Step 4: Simplify right side
    445,783.60x = 72,769,038,997.96
  5. Step 5: Solve for x
    x = 72,769,038,997.96/445,783.60
  6. Step 6: Final answer
    x = 163,238.48

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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.