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Finding the Fourth Proportional to 118,042.92, 162,893.43 and 64,327.77

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Solution

The fourth proportional to 118,042.92, 162,893.43 and 64,327.77 is: 88,769.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,042.92 : 162,893.43 = 64,327.77 : x
  2. Step 2: Convert to fraction form
    118,042.92/162,893.43 = 64,327.77/x
  3. Step 3: Cross multiply
    118,042.92x = 162,893.43 × 64,327.77
  4. Step 4: Simplify right side
    118,042.92x = 10,478,571,099.55
  5. Step 5: Solve for x
    x = 10,478,571,099.55/118,042.92
  6. Step 6: Final answer
    x = 88,769.16

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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.