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Finding the Fourth Proportional to 134,659.20, 188,872.80 and 134,659.20

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Solution

The fourth proportional to 134,659.20, 188,872.80 and 134,659.20 is: 188,872.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,659.20 : 188,872.80 = 134,659.20 : x
  2. Step 2: Convert to fraction form
    134,659.20/188,872.80 = 134,659.20/x
  3. Step 3: Cross multiply
    134,659.20x = 188,872.80 × 134,659.20
  4. Step 4: Simplify right side
    134,659.20x = 25,433,460,149.76
  5. Step 5: Solve for x
    x = 25,433,460,149.76/134,659.20
  6. Step 6: Final answer
    x = 188,872.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.