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Finding the Fourth Proportional to 111,363.38, 166,965.71 and 52,166.76

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Solution

The fourth proportional to 111,363.38, 166,965.71 and 52,166.76 is: 78,212.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,363.38 : 166,965.71 = 52,166.76 : x
  2. Step 2: Convert to fraction form
    111,363.38/166,965.71 = 52,166.76/x
  3. Step 3: Cross multiply
    111,363.38x = 166,965.71 × 52,166.76
  4. Step 4: Simplify right side
    111,363.38x = 8,710,059,860.97
  5. Step 5: Solve for x
    x = 8,710,059,860.97/111,363.38
  6. Step 6: Final answer
    x = 78,212.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.