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Finding the Fourth Proportional to 118,043.52, 162,895.92 and 64,327.44

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Solution

The fourth proportional to 118,043.52, 162,895.92 and 64,327.44 is: 88,769.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,043.52 : 162,895.92 = 64,327.44 : x
  2. Step 2: Convert to fraction form
    118,043.52/162,895.92 = 64,327.44/x
  3. Step 3: Cross multiply
    118,043.52x = 162,895.92 × 64,327.44
  4. Step 4: Simplify right side
    118,043.52x = 10,478,677,520.04
  5. Step 5: Solve for x
    x = 10,478,677,520.04/118,043.52
  6. Step 6: Final answer
    x = 88,769.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.