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Finding the Fourth Proportional to 120,595.67, 166,432.24 and 66,897.98

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Solution

The fourth proportional to 120,595.67, 166,432.24 and 66,897.98 is: 92,324.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,595.67 : 166,432.24 = 66,897.98 : x
  2. Step 2: Convert to fraction form
    120,595.67/166,432.24 = 66,897.98/x
  3. Step 3: Cross multiply
    120,595.67x = 166,432.24 × 66,897.98
  4. Step 4: Simplify right side
    120,595.67x = 11,133,981,662.79
  5. Step 5: Solve for x
    x = 11,133,981,662.79/120,595.67
  6. Step 6: Final answer
    x = 92,324.89

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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.