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Finding the Fourth Proportional to 120,798.18, 166,674.60 and 73,050.57

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Solution

The fourth proportional to 120,798.18, 166,674.60 and 73,050.57 is: 100,793.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,798.18 : 166,674.60 = 73,050.57 : x
  2. Step 2: Convert to fraction form
    120,798.18/166,674.60 = 73,050.57/x
  3. Step 3: Cross multiply
    120,798.18x = 166,674.60 × 73,050.57
  4. Step 4: Simplify right side
    120,798.18x = 12,175,674,534.52
  5. Step 5: Solve for x
    x = 12,175,674,534.52/120,798.18
  6. Step 6: Final answer
    x = 100,793.53

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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.