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Finding the Fourth Proportional to 115,934.70, 173,902.05 and 103,468.80

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Solution

The fourth proportional to 115,934.70, 173,902.05 and 103,468.80 is: 155,203.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,934.70 : 173,902.05 = 103,468.80 : x
  2. Step 2: Convert to fraction form
    115,934.70/173,902.05 = 103,468.80/x
  3. Step 3: Cross multiply
    115,934.70x = 173,902.05 × 103,468.80
  4. Step 4: Simplify right side
    115,934.70x = 17,993,436,431.04
  5. Step 5: Solve for x
    x = 17,993,436,431.04/115,934.70
  6. Step 6: Final answer
    x = 155,203.20

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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.