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Finding the Fourth Proportional to 214,643.04, 321,860.88 and 89,950.56

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Solution

The fourth proportional to 214,643.04, 321,860.88 and 89,950.56 is: 134,882.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,643.04 : 321,860.88 = 89,950.56 : x
  2. Step 2: Convert to fraction form
    214,643.04/321,860.88 = 89,950.56/x
  3. Step 3: Cross multiply
    214,643.04x = 321,860.88 × 89,950.56
  4. Step 4: Simplify right side
    214,643.04x = 28,951,566,398.09
  5. Step 5: Solve for x
    x = 28,951,566,398.09/214,643.04
  6. Step 6: Final answer
    x = 134,882.39

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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.