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Finding the Fourth Proportional to 160,917.80, 241,491.90 and 67,490.60

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Solution

The fourth proportional to 160,917.80, 241,491.90 and 67,490.60 is: 101,284.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,917.80 : 241,491.90 = 67,490.60 : x
  2. Step 2: Convert to fraction form
    160,917.80/241,491.90 = 67,490.60/x
  3. Step 3: Cross multiply
    160,917.80x = 241,491.90 × 67,490.60
  4. Step 4: Simplify right side
    160,917.80x = 16,298,433,226.14
  5. Step 5: Solve for x
    x = 16,298,433,226.14/160,917.80
  6. Step 6: Final answer
    x = 101,284.22

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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.