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Finding the Fourth Proportional to 120,596.96, 166,423.14 and 66,889.92

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Solution

The fourth proportional to 120,596.96, 166,423.14 and 66,889.92 is: 92,307.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,596.96 : 166,423.14 = 66,889.92 : x
  2. Step 2: Convert to fraction form
    120,596.96/166,423.14 = 66,889.92/x
  3. Step 3: Cross multiply
    120,596.96x = 166,423.14 × 66,889.92
  4. Step 4: Simplify right side
    120,596.96x = 11,132,030,520.75
  5. Step 5: Solve for x
    x = 11,132,030,520.75/120,596.96
  6. Step 6: Final answer
    x = 92,307.72

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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.