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Finding the Fourth Proportional to 263,018.40, 362,972.52 and 161,041.92

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Solution

The fourth proportional to 263,018.40, 362,972.52 and 161,041.92 is: 222,242.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,018.40 : 362,972.52 = 161,041.92 : x
  2. Step 2: Convert to fraction form
    263,018.40/362,972.52 = 161,041.92/x
  3. Step 3: Cross multiply
    263,018.40x = 362,972.52 × 161,041.92
  4. Step 4: Simplify right side
    263,018.40x = 58,453,791,528.04
  5. Step 5: Solve for x
    x = 58,453,791,528.04/263,018.40
  6. Step 6: Final answer
    x = 222,242.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.