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Finding the Fourth Proportional to 125,084.94, 187,632.87 and 40,844.43

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Solution

The fourth proportional to 125,084.94, 187,632.87 and 40,844.43 is: 61,268.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,084.94 : 187,632.87 = 40,844.43 : x
  2. Step 2: Convert to fraction form
    125,084.94/187,632.87 = 40,844.43/x
  3. Step 3: Cross multiply
    125,084.94x = 187,632.87 × 40,844.43
  4. Step 4: Simplify right side
    125,084.94x = 7,663,757,624.41
  5. Step 5: Solve for x
    x = 7,663,757,624.41/125,084.94
  6. Step 6: Final answer
    x = 61,268.43

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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.