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Finding the Fourth Proportional to 219,665.63, 329,498.45 and 53,453.63

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Solution

The fourth proportional to 219,665.63, 329,498.45 and 53,453.63 is: 80,180.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,665.63 : 329,498.45 = 53,453.63 : x
  2. Step 2: Convert to fraction form
    219,665.63/329,498.45 = 53,453.63/x
  3. Step 3: Cross multiply
    219,665.63x = 329,498.45 × 53,453.63
  4. Step 4: Simplify right side
    219,665.63x = 17,612,886,317.11
  5. Step 5: Solve for x
    x = 17,612,886,317.11/219,665.63
  6. Step 6: Final answer
    x = 80,180.44

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1.5x scale

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.