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Finding the Fourth Proportional to 146,236.64, 201,806.60 and 79,168.64

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Solution

The fourth proportional to 146,236.64, 201,806.60 and 79,168.64 is: 109,252.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,236.64 : 201,806.60 = 79,168.64 : x
  2. Step 2: Convert to fraction form
    146,236.64/201,806.60 = 79,168.64/x
  3. Step 3: Cross multiply
    146,236.64x = 201,806.60 × 79,168.64
  4. Step 4: Simplify right side
    146,236.64x = 15,976,754,065.02
  5. Step 5: Solve for x
    x = 15,976,754,065.02/146,236.64
  6. Step 6: Final answer
    x = 109,252.74

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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.