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Finding the Fourth Proportional to 107,115.57, 160,786.41 and 104,702.86

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Solution

The fourth proportional to 107,115.57, 160,786.41 and 104,702.86 is: 157,164.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,115.57 : 160,786.41 = 104,702.86 : x
  2. Step 2: Convert to fraction form
    107,115.57/160,786.41 = 104,702.86/x
  3. Step 3: Cross multiply
    107,115.57x = 160,786.41 × 104,702.86
  4. Step 4: Simplify right side
    107,115.57x = 16,834,796,172.20
  5. Step 5: Solve for x
    x = 16,834,796,172.20/107,115.57
  6. Step 6: Final answer
    x = 157,164.80

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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.