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Finding the Fourth Proportional to 214,599.94, 321,957.32 and 74,358.56

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Solution

The fourth proportional to 214,599.94, 321,957.32 and 74,358.56 is: 111,557.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,599.94 : 321,957.32 = 74,358.56 : x
  2. Step 2: Convert to fraction form
    214,599.94/321,957.32 = 74,358.56/x
  3. Step 3: Cross multiply
    214,599.94x = 321,957.32 × 74,358.56
  4. Step 4: Simplify right side
    214,599.94x = 23,940,283,129.76
  5. Step 5: Solve for x
    x = 23,940,283,129.76/214,599.94
  6. Step 6: Final answer
    x = 111,557.74

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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.