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Finding the Fourth Proportional to 219,668.46, 329,126.49 and 119,898.69

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Solution

The fourth proportional to 219,668.46, 329,126.49 and 119,898.69 is: 179,642.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,668.46 : 329,126.49 = 119,898.69 : x
  2. Step 2: Convert to fraction form
    219,668.46/329,126.49 = 119,898.69/x
  3. Step 3: Cross multiply
    219,668.46x = 329,126.49 × 119,898.69
  4. Step 4: Simplify right side
    219,668.46x = 39,461,834,995.30
  5. Step 5: Solve for x
    x = 39,461,834,995.30/219,668.46
  6. Step 6: Final answer
    x = 179,642.70

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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.