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Finding the Fourth Proportional to 125,811, 188,716.50 and 32,316.75

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Solution

The fourth proportional to 125,811, 188,716.50 and 32,316.75 is: 48,475.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,811 : 188,716.50 = 32,316.75 : x
  2. Step 2: Convert to fraction form
    125,811/188,716.50 = 32,316.75/x
  3. Step 3: Cross multiply
    125,811x = 188,716.50 × 32,316.75
  4. Step 4: Simplify right side
    125,811x = 6,098,703,951.38
  5. Step 5: Solve for x
    x = 6,098,703,951.38/125,811
  6. Step 6: Final answer
    x = 48,475.13

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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.