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Finding the Fourth Proportional to 219,416.73, 329,136.48 and 69,668.74

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Solution

The fourth proportional to 219,416.73, 329,136.48 and 69,668.74 is: 104,506.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,416.73 : 329,136.48 = 69,668.74 : x
  2. Step 2: Convert to fraction form
    219,416.73/329,136.48 = 69,668.74/x
  3. Step 3: Cross multiply
    219,416.73x = 329,136.48 × 69,668.74
  4. Step 4: Simplify right side
    219,416.73x = 22,930,523,849.64
  5. Step 5: Solve for x
    x = 22,930,523,849.64/219,416.73
  6. Step 6: Final answer
    x = 104,506.73

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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.