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Finding the Fourth Proportional to 221,668.59, 332,549.62 and 71,897.23

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Solution

The fourth proportional to 221,668.59, 332,549.62 and 71,897.23 is: 107,861.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,668.59 : 332,549.62 = 71,897.23 : x
  2. Step 2: Convert to fraction form
    221,668.59/332,549.62 = 71,897.23/x
  3. Step 3: Cross multiply
    221,668.59x = 332,549.62 × 71,897.23
  4. Step 4: Simplify right side
    221,668.59x = 23,909,395,863.92
  5. Step 5: Solve for x
    x = 23,909,395,863.92/221,668.59
  6. Step 6: Final answer
    x = 107,861.00

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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.