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Finding the Fourth Proportional to 216,842.55, 299,236.29 and 120,050.72

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Solution

The fourth proportional to 216,842.55, 299,236.29 and 120,050.72 is: 165,666.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,842.55 : 299,236.29 = 120,050.72 : x
  2. Step 2: Convert to fraction form
    216,842.55/299,236.29 = 120,050.72/x
  3. Step 3: Cross multiply
    216,842.55x = 299,236.29 × 120,050.72
  4. Step 4: Simplify right side
    216,842.55x = 35,923,530,568.45
  5. Step 5: Solve for x
    x = 35,923,530,568.45/216,842.55
  6. Step 6: Final answer
    x = 165,666.43

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.