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Finding the Fourth Proportional to 165,394.29, 228,243.99 and 89,942.79

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Solution

The fourth proportional to 165,394.29, 228,243.99 and 89,942.79 is: 124,120.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,394.29 : 228,243.99 = 89,942.79 : x
  2. Step 2: Convert to fraction form
    165,394.29/228,243.99 = 89,942.79/x
  3. Step 3: Cross multiply
    165,394.29x = 228,243.99 × 89,942.79
  4. Step 4: Simplify right side
    165,394.29x = 20,528,901,261.33
  5. Step 5: Solve for x
    x = 20,528,901,261.33/165,394.29
  6. Step 6: Final answer
    x = 124,120.98

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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.