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Finding the Fourth Proportional to 60,489.80, 90,734.70 and 16,123.40

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Solution

The fourth proportional to 60,489.80, 90,734.70 and 16,123.40 is: 24,185.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,489.80 : 90,734.70 = 16,123.40 : x
  2. Step 2: Convert to fraction form
    60,489.80/90,734.70 = 16,123.40/x
  3. Step 3: Cross multiply
    60,489.80x = 90,734.70 × 16,123.40
  4. Step 4: Simplify right side
    60,489.80x = 1,462,951,861.98
  5. Step 5: Solve for x
    x = 1,462,951,861.98/60,489.80
  6. Step 6: Final answer
    x = 24,185.10

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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.