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Finding the Fourth Proportional to 108,169.74, 162,060.48 and 66,028.14

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Solution

The fourth proportional to 108,169.74, 162,060.48 and 66,028.14 is: 98,923.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,169.74 : 162,060.48 = 66,028.14 : x
  2. Step 2: Convert to fraction form
    108,169.74/162,060.48 = 66,028.14/x
  3. Step 3: Cross multiply
    108,169.74x = 162,060.48 × 66,028.14
  4. Step 4: Simplify right side
    108,169.74x = 10,700,552,061.91
  5. Step 5: Solve for x
    x = 10,700,552,061.91/108,169.74
  6. Step 6: Final answer
    x = 98,923.71

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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.