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Finding the Fourth Proportional to 134,516.96, 201,619.92 and 71,398.56

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Solution

The fourth proportional to 134,516.96, 201,619.92 and 71,398.56 is: 107,015.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,516.96 : 201,619.92 = 71,398.56 : x
  2. Step 2: Convert to fraction form
    134,516.96/201,619.92 = 71,398.56/x
  3. Step 3: Cross multiply
    134,516.96x = 201,619.92 × 71,398.56
  4. Step 4: Simplify right side
    134,516.96x = 14,395,371,955.32
  5. Step 5: Solve for x
    x = 14,395,371,955.32/134,516.96
  6. Step 6: Final answer
    x = 107,015.29

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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.