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Finding the Fourth Proportional to 236,361.24, 354,541.90 and 78,591.06

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Solution

The fourth proportional to 236,361.24, 354,541.90 and 78,591.06 is: 117,886.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,361.24 : 354,541.90 = 78,591.06 : x
  2. Step 2: Convert to fraction form
    236,361.24/354,541.90 = 78,591.06/x
  3. Step 3: Cross multiply
    236,361.24x = 354,541.90 × 78,591.06
  4. Step 4: Simplify right side
    236,361.24x = 27,863,823,735.41
  5. Step 5: Solve for x
    x = 27,863,823,735.41/236,361.24
  6. Step 6: Final answer
    x = 117,886.60

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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.