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Finding the Fourth Proportional to 84,766.70, 127,191.36 and 34,861.76

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Solution

The fourth proportional to 84,766.70, 127,191.36 and 34,861.76 is: 52,309.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,766.70 : 127,191.36 = 34,861.76 : x
  2. Step 2: Convert to fraction form
    84,766.70/127,191.36 = 34,861.76/x
  3. Step 3: Cross multiply
    84,766.70x = 127,191.36 × 34,861.76
  4. Step 4: Simplify right side
    84,766.70x = 4,434,114,666.39
  5. Step 5: Solve for x
    x = 4,434,114,666.39/84,766.70
  6. Step 6: Final answer
    x = 52,309.63

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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.