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Finding the Fourth Proportional to 219,388.08, 329,081.04 and 53,176.08

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Solution

The fourth proportional to 219,388.08, 329,081.04 and 53,176.08 is: 79,763.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,388.08 : 329,081.04 = 53,176.08 : x
  2. Step 2: Convert to fraction form
    219,388.08/329,081.04 = 53,176.08/x
  3. Step 3: Cross multiply
    219,388.08x = 329,081.04 × 53,176.08
  4. Step 4: Simplify right side
    219,388.08x = 17,499,239,709.52
  5. Step 5: Solve for x
    x = 17,499,239,709.52/219,388.08
  6. Step 6: Final answer
    x = 79,763.86

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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.