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Finding the Fourth Proportional to 362,135.27, 543,079.89 and 125,422.63

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Solution

The fourth proportional to 362,135.27, 543,079.89 and 125,422.63 is: 188,091.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,135.27 : 543,079.89 = 125,422.63 : x
  2. Step 2: Convert to fraction form
    362,135.27/543,079.89 = 125,422.63/x
  3. Step 3: Cross multiply
    362,135.27x = 543,079.89 × 125,422.63
  4. Step 4: Simplify right side
    362,135.27x = 68,114,506,746.21
  5. Step 5: Solve for x
    x = 68,114,506,746.21/362,135.27
  6. Step 6: Final answer
    x = 188,091.33

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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.