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Finding the Fourth Proportional to 107,072.40, 160,435.80 and 67,558.80

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Solution

The fourth proportional to 107,072.40, 160,435.80 and 67,558.80 is: 101,229.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,072.40 : 160,435.80 = 67,558.80 : x
  2. Step 2: Convert to fraction form
    107,072.40/160,435.80 = 67,558.80/x
  3. Step 3: Cross multiply
    107,072.40x = 160,435.80 × 67,558.80
  4. Step 4: Simplify right side
    107,072.40x = 10,838,850,125.04
  5. Step 5: Solve for x
    x = 10,838,850,125.04/107,072.40
  6. Step 6: Final answer
    x = 101,229.17

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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.