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Finding the Fourth Proportional to 84,819.80, 127,191.30 and 32,211.80

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Solution

The fourth proportional to 84,819.80, 127,191.30 and 32,211.80 is: 48,303.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,819.80 : 127,191.30 = 32,211.80 : x
  2. Step 2: Convert to fraction form
    84,819.80/127,191.30 = 32,211.80/x
  3. Step 3: Cross multiply
    84,819.80x = 127,191.30 × 32,211.80
  4. Step 4: Simplify right side
    84,819.80x = 4,097,060,717.34
  5. Step 5: Solve for x
    x = 4,097,060,717.34/84,819.80
  6. Step 6: Final answer
    x = 48,303.12

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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.