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Finding the Fourth Proportional to 102,732.59, 154,111.19 and 43,560.56

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Solution

The fourth proportional to 102,732.59, 154,111.19 and 43,560.56 is: 65,346.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,732.59 : 154,111.19 = 43,560.56 : x
  2. Step 2: Convert to fraction form
    102,732.59/154,111.19 = 43,560.56/x
  3. Step 3: Cross multiply
    102,732.59x = 154,111.19 × 43,560.56
  4. Step 4: Simplify right side
    102,732.59x = 6,713,169,906.14
  5. Step 5: Solve for x
    x = 6,713,169,906.14/102,732.59
  6. Step 6: Final answer
    x = 65,346.06

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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.