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Finding the Fourth Proportional to 134,120.64, 201,224.64 and 63,990.88

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Solution

The fourth proportional to 134,120.64, 201,224.64 and 63,990.88 is: 96,007.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,120.64 : 201,224.64 = 63,990.88 : x
  2. Step 2: Convert to fraction form
    134,120.64/201,224.64 = 63,990.88/x
  3. Step 3: Cross multiply
    134,120.64x = 201,224.64 × 63,990.88
  4. Step 4: Simplify right side
    134,120.64x = 12,876,541,791.28
  5. Step 5: Solve for x
    x = 12,876,541,791.28/134,120.64
  6. Step 6: Final answer
    x = 96,007.16

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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.