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Finding the Fourth Proportional to 214,487.99, 321,734.28 and 64,729.62

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Solution

The fourth proportional to 214,487.99, 321,734.28 and 64,729.62 is: 97,095.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,487.99 : 321,734.28 = 64,729.62 : x
  2. Step 2: Convert to fraction form
    214,487.99/321,734.28 = 64,729.62/x
  3. Step 3: Cross multiply
    214,487.99x = 321,734.28 × 64,729.62
  4. Step 4: Simplify right side
    214,487.99x = 20,825,736,557.39
  5. Step 5: Solve for x
    x = 20,825,736,557.39/214,487.99
  6. Step 6: Final answer
    x = 97,095.12

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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.