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Finding the Fourth Proportional to 120,562.66, 180,842.16 and 50,441.97

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Solution

The fourth proportional to 120,562.66, 180,842.16 and 50,441.97 is: 75,662.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,562.66 : 180,842.16 = 50,441.97 : x
  2. Step 2: Convert to fraction form
    120,562.66/180,842.16 = 50,441.97/x
  3. Step 3: Cross multiply
    120,562.66x = 180,842.16 × 50,441.97
  4. Step 4: Simplify right side
    120,562.66x = 9,122,034,809.46
  5. Step 5: Solve for x
    x = 9,122,034,809.46/120,562.66
  6. Step 6: Final answer
    x = 75,662.19

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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.