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Finding the Fourth Proportional to 136,326.80, 204,052.80 and 96,960.80

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Solution

The fourth proportional to 136,326.80, 204,052.80 and 96,960.80 is: 145,130.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,326.80 : 204,052.80 = 96,960.80 : x
  2. Step 2: Convert to fraction form
    136,326.80/204,052.80 = 96,960.80/x
  3. Step 3: Cross multiply
    136,326.80x = 204,052.80 × 96,960.80
  4. Step 4: Simplify right side
    136,326.80x = 19,785,122,730.24
  5. Step 5: Solve for x
    x = 19,785,122,730.24/136,326.80
  6. Step 6: Final answer
    x = 145,130.10

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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.