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Finding the Fourth Proportional to 165,668.80, 228,609.45 and 93,067.74

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Solution

The fourth proportional to 165,668.80, 228,609.45 and 93,067.74 is: 128,425.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,668.80 : 228,609.45 = 93,067.74 : x
  2. Step 2: Convert to fraction form
    165,668.80/228,609.45 = 93,067.74/x
  3. Step 3: Cross multiply
    165,668.80x = 228,609.45 × 93,067.74
  4. Step 4: Simplify right side
    165,668.80x = 21,276,164,171.36
  5. Step 5: Solve for x
    x = 21,276,164,171.36/165,668.80
  6. Step 6: Final answer
    x = 128,425.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.