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Finding the Fourth Proportional to 165,788.94, 228,790.46 and 90,337.44

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Solution

The fourth proportional to 165,788.94, 228,790.46 and 90,337.44 is: 124,666.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,788.94 : 228,790.46 = 90,337.44 : x
  2. Step 2: Convert to fraction form
    165,788.94/228,790.46 = 90,337.44/x
  3. Step 3: Cross multiply
    165,788.94x = 228,790.46 × 90,337.44
  4. Step 4: Simplify right side
    165,788.94x = 20,668,344,452.82
  5. Step 5: Solve for x
    x = 20,668,344,452.82/165,788.94
  6. Step 6: Final answer
    x = 124,666.61

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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.