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Finding the Fourth Proportional to 362,178.81, 543,364.83 and 125,521.29

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Solution

The fourth proportional to 362,178.81, 543,364.83 and 125,521.29 is: 188,315.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,178.81 : 543,364.83 = 125,521.29 : x
  2. Step 2: Convert to fraction form
    362,178.81/543,364.83 = 125,521.29/x
  3. Step 3: Cross multiply
    362,178.81x = 543,364.83 × 125,521.29
  4. Step 4: Simplify right side
    362,178.81x = 68,203,854,402.23
  5. Step 5: Solve for x
    x = 68,203,854,402.23/362,178.81
  6. Step 6: Final answer
    x = 188,315.42

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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.