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Finding the Fourth Proportional to 134,682.60, 201,805.20 and 84,673.20

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Solution

The fourth proportional to 134,682.60, 201,805.20 and 84,673.20 is: 126,872.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,682.60 : 201,805.20 = 84,673.20 : x
  2. Step 2: Convert to fraction form
    134,682.60/201,805.20 = 84,673.20/x
  3. Step 3: Cross multiply
    134,682.60x = 201,805.20 × 84,673.20
  4. Step 4: Simplify right side
    134,682.60x = 17,087,492,060.64
  5. Step 5: Solve for x
    x = 17,087,492,060.64/134,682.60
  6. Step 6: Final answer
    x = 126,872.31

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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.