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Finding the Fourth Proportional to 165,638.92, 228,602.28 and 94,042.12

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Solution

The fourth proportional to 165,638.92, 228,602.28 and 94,042.12 is: 129,789.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,638.92 : 228,602.28 = 94,042.12 : x
  2. Step 2: Convert to fraction form
    165,638.92/228,602.28 = 94,042.12/x
  3. Step 3: Cross multiply
    165,638.92x = 228,602.28 × 94,042.12
  4. Step 4: Simplify right side
    165,638.92x = 21,498,243,048.03
  5. Step 5: Solve for x
    x = 21,498,243,048.03/165,638.92
  6. Step 6: Final answer
    x = 129,789.80

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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.