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Finding the Fourth Proportional to 106,787.82, 160,472.72 and 56,903.56

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Solution

The fourth proportional to 106,787.82, 160,472.72 and 56,903.56 is: 85,510.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,787.82 : 160,472.72 = 56,903.56 : x
  2. Step 2: Convert to fraction form
    106,787.82/160,472.72 = 56,903.56/x
  3. Step 3: Cross multiply
    106,787.82x = 160,472.72 × 56,903.56
  4. Step 4: Simplify right side
    106,787.82x = 9,131,469,534.58
  5. Step 5: Solve for x
    x = 9,131,469,534.58/106,787.82
  6. Step 6: Final answer
    x = 85,510.40

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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.