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Finding the Fourth Proportional to 165,439.97, 228,347.72 and 93,861.89

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Solution

The fourth proportional to 165,439.97, 228,347.72 and 93,861.89 is: 129,552.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,439.97 : 228,347.72 = 93,861.89 : x
  2. Step 2: Convert to fraction form
    165,439.97/228,347.72 = 93,861.89/x
  3. Step 3: Cross multiply
    165,439.97x = 228,347.72 × 93,861.89
  4. Step 4: Simplify right side
    165,439.97x = 21,433,149,029.93
  5. Step 5: Solve for x
    x = 21,433,149,029.93/165,439.97
  6. Step 6: Final answer
    x = 129,552.42

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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.