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Finding the Fourth Proportional to 120,803.50, 166,711.08 and 67,093.48

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Solution

The fourth proportional to 120,803.50, 166,711.08 and 67,093.48 is: 92,590.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,803.50 : 166,711.08 = 67,093.48 : x
  2. Step 2: Convert to fraction form
    120,803.50/166,711.08 = 67,093.48/x
  3. Step 3: Cross multiply
    120,803.50x = 166,711.08 × 67,093.48
  4. Step 4: Simplify right side
    120,803.50x = 11,185,226,511.76
  5. Step 5: Solve for x
    x = 11,185,226,511.76/120,803.50
  6. Step 6: Final answer
    x = 92,590.25

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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.