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Finding the Fourth Proportional to 220,668.60, 330,743.70 and 102,089.46

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Solution

The fourth proportional to 220,668.60, 330,743.70 and 102,089.46 is: 153,014.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,668.60 : 330,743.70 = 102,089.46 : x
  2. Step 2: Convert to fraction form
    220,668.60/330,743.70 = 102,089.46/x
  3. Step 3: Cross multiply
    220,668.60x = 330,743.70 × 102,089.46
  4. Step 4: Simplify right side
    220,668.60x = 33,765,445,731.40
  5. Step 5: Solve for x
    x = 33,765,445,731.40/220,668.60
  6. Step 6: Final answer
    x = 153,014.27

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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.