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Finding the Fourth Proportional to 173,178.60, 259,962.30 and 133,909.80

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Solution

The fourth proportional to 173,178.60, 259,962.30 and 133,909.80 is: 201,015.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,178.60 : 259,962.30 = 133,909.80 : x
  2. Step 2: Convert to fraction form
    173,178.60/259,962.30 = 133,909.80/x
  3. Step 3: Cross multiply
    173,178.60x = 259,962.30 × 133,909.80
  4. Step 4: Simplify right side
    173,178.60x = 34,811,499,600.54
  5. Step 5: Solve for x
    x = 34,811,499,600.54/173,178.60
  6. Step 6: Final answer
    x = 201,015.02

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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.