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Finding the Fourth Proportional to 185,944.80, 279,176.40 and 115,960.80

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Solution

The fourth proportional to 185,944.80, 279,176.40 and 115,960.80 is: 174,102.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,944.80 : 279,176.40 = 115,960.80 : x
  2. Step 2: Convert to fraction form
    185,944.80/279,176.40 = 115,960.80/x
  3. Step 3: Cross multiply
    185,944.80x = 279,176.40 × 115,960.80
  4. Step 4: Simplify right side
    185,944.80x = 32,373,518,685.12
  5. Step 5: Solve for x
    x = 32,373,518,685.12/185,944.80
  6. Step 6: Final answer
    x = 174,102.84

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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.