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Finding the Fourth Proportional to 136,506.88, 204,754.56 and 43,079.68

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Solution

The fourth proportional to 136,506.88, 204,754.56 and 43,079.68 is: 64,617.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,506.88 : 204,754.56 = 43,079.68 : x
  2. Step 2: Convert to fraction form
    136,506.88/204,754.56 = 43,079.68/x
  3. Step 3: Cross multiply
    136,506.88x = 204,754.56 × 43,079.68
  4. Step 4: Simplify right side
    136,506.88x = 8,820,760,923.34
  5. Step 5: Solve for x
    x = 8,820,760,923.34/136,506.88
  6. Step 6: Final answer
    x = 64,617.70

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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.