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Finding the Fourth Proportional to 107,868.60, 161,841.30 and 104,028.60

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Solution

The fourth proportional to 107,868.60, 161,841.30 and 104,028.60 is: 156,079.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,868.60 : 161,841.30 = 104,028.60 : x
  2. Step 2: Convert to fraction form
    107,868.60/161,841.30 = 104,028.60/x
  3. Step 3: Cross multiply
    107,868.60x = 161,841.30 × 104,028.60
  4. Step 4: Simplify right side
    107,868.60x = 16,836,123,861.18
  5. Step 5: Solve for x
    x = 16,836,123,861.18/107,868.60
  6. Step 6: Final answer
    x = 156,079.93

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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.