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Finding the Fourth Proportional to 159,160.43, 219,639.65 and 87,541.44

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Solution

The fourth proportional to 159,160.43, 219,639.65 and 87,541.44 is: 120,806.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,160.43 : 219,639.65 = 87,541.44 : x
  2. Step 2: Convert to fraction form
    159,160.43/219,639.65 = 87,541.44/x
  3. Step 3: Cross multiply
    159,160.43x = 219,639.65 × 87,541.44
  4. Step 4: Simplify right side
    159,160.43x = 19,227,570,804.39
  5. Step 5: Solve for x
    x = 19,227,570,804.39/159,160.43
  6. Step 6: Final answer
    x = 120,806.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.