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Finding the Fourth Proportional to 214,819.60, 321,840.60 and 183,715.60

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Solution

The fourth proportional to 214,819.60, 321,840.60 and 183,715.60 is: 275,240.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,819.60 : 321,840.60 = 183,715.60 : x
  2. Step 2: Convert to fraction form
    214,819.60/321,840.60 = 183,715.60/x
  3. Step 3: Cross multiply
    214,819.60x = 321,840.60 × 183,715.60
  4. Step 4: Simplify right side
    214,819.60x = 59,127,138,933.36
  5. Step 5: Solve for x
    x = 59,127,138,933.36/214,819.60
  6. Step 6: Final answer
    x = 275,240.89

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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.