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Finding the Fourth Proportional to 362,489.55, 543,434.95 and 159,941.45

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Solution

The fourth proportional to 362,489.55, 543,434.95 and 159,941.45 is: 239,780.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,489.55 : 543,434.95 = 159,941.45 : x
  2. Step 2: Convert to fraction form
    362,489.55/543,434.95 = 159,941.45/x
  3. Step 3: Cross multiply
    362,489.55x = 543,434.95 × 159,941.45
  4. Step 4: Simplify right side
    362,489.55x = 86,917,770,366.80
  5. Step 5: Solve for x
    x = 86,917,770,366.80/362,489.55
  6. Step 6: Final answer
    x = 239,780.07

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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.