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Finding the Fourth Proportional to 154,477.60, 231,716.40 and 71,371.60

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Solution

The fourth proportional to 154,477.60, 231,716.40 and 71,371.60 is: 107,057.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,477.60 : 231,716.40 = 71,371.60 : x
  2. Step 2: Convert to fraction form
    154,477.60/231,716.40 = 71,371.60/x
  3. Step 3: Cross multiply
    154,477.60x = 231,716.40 × 71,371.60
  4. Step 4: Simplify right side
    154,477.60x = 16,537,970,214.24
  5. Step 5: Solve for x
    x = 16,537,970,214.24/154,477.60
  6. Step 6: Final answer
    x = 107,057.40

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.