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Finding the Fourth Proportional to 362,541.80, 543,812.70 and 125,908.40

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Solution

The fourth proportional to 362,541.80, 543,812.70 and 125,908.40 is: 188,862.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,541.80 : 543,812.70 = 125,908.40 : x
  2. Step 2: Convert to fraction form
    362,541.80/543,812.70 = 125,908.40/x
  3. Step 3: Cross multiply
    362,541.80x = 543,812.70 × 125,908.40
  4. Step 4: Simplify right side
    362,541.80x = 68,470,586,956.68
  5. Step 5: Solve for x
    x = 68,470,586,956.68/362,541.80
  6. Step 6: Final answer
    x = 188,862.60

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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.