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Finding the Fourth Proportional to 219,382.59, 329,073.91 and 53,170.59

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Solution

The fourth proportional to 219,382.59, 329,073.91 and 53,170.59 is: 79,755.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,382.59 : 329,073.91 = 53,170.59 : x
  2. Step 2: Convert to fraction form
    219,382.59/329,073.91 = 53,170.59/x
  3. Step 3: Cross multiply
    219,382.59x = 329,073.91 × 53,170.59
  4. Step 4: Simplify right side
    219,382.59x = 17,497,055,049.41
  5. Step 5: Solve for x
    x = 17,497,055,049.41/219,382.59
  6. Step 6: Final answer
    x = 79,755.89

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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.