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Finding the Fourth Proportional to 220,924.63, 331,078.04 and 119,503.76

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Solution

The fourth proportional to 220,924.63, 331,078.04 and 119,503.76 is: 179,088.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,924.63 : 331,078.04 = 119,503.76 : x
  2. Step 2: Convert to fraction form
    220,924.63/331,078.04 = 119,503.76/x
  3. Step 3: Cross multiply
    220,924.63x = 331,078.04 × 119,503.76
  4. Step 4: Simplify right side
    220,924.63x = 39,565,069,276.80
  5. Step 5: Solve for x
    x = 39,565,069,276.80/220,924.63
  6. Step 6: Final answer
    x = 179,088.54

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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.