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Finding the Fourth Proportional to 108,610.80, 162,916.20 and 73,359.60

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Solution

The fourth proportional to 108,610.80, 162,916.20 and 73,359.60 is: 110,039.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,610.80 : 162,916.20 = 73,359.60 : x
  2. Step 2: Convert to fraction form
    108,610.80/162,916.20 = 73,359.60/x
  3. Step 3: Cross multiply
    108,610.80x = 162,916.20 × 73,359.60
  4. Step 4: Simplify right side
    108,610.80x = 11,951,467,265.52
  5. Step 5: Solve for x
    x = 11,951,467,265.52/108,610.80
  6. Step 6: Final answer
    x = 110,039.40

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1.5x scale

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.