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Finding the Fourth Proportional to 219,541.20, 329,311.68 and 53,329.20

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Solution

The fourth proportional to 219,541.20, 329,311.68 and 53,329.20 is: 79,993.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,541.20 : 329,311.68 = 53,329.20 : x
  2. Step 2: Convert to fraction form
    219,541.20/329,311.68 = 53,329.20/x
  3. Step 3: Cross multiply
    219,541.20x = 329,311.68 × 53,329.20
  4. Step 4: Simplify right side
    219,541.20x = 17,561,928,445.06
  5. Step 5: Solve for x
    x = 17,561,928,445.06/219,541.20
  6. Step 6: Final answer
    x = 79,993.77

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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.