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Finding the Fourth Proportional to 108,353.40, 162,309.77 and 88,433.88

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Solution

The fourth proportional to 108,353.40, 162,309.77 and 88,433.88 is: 132,471.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,353.40 : 162,309.77 = 88,433.88 : x
  2. Step 2: Convert to fraction form
    108,353.40/162,309.77 = 88,433.88/x
  3. Step 3: Cross multiply
    108,353.40x = 162,309.77 × 88,433.88
  4. Step 4: Simplify right side
    108,353.40x = 14,353,682,723.01
  5. Step 5: Solve for x
    x = 14,353,682,723.01/108,353.40
  6. Step 6: Final answer
    x = 132,471.00

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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.