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Finding the Fourth Proportional to 170,748.40, 256,122.60 and 82,044.40

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Solution

The fourth proportional to 170,748.40, 256,122.60 and 82,044.40 is: 123,066.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,748.40 : 256,122.60 = 82,044.40 : x
  2. Step 2: Convert to fraction form
    170,748.40/256,122.60 = 82,044.40/x
  3. Step 3: Cross multiply
    170,748.40x = 256,122.60 × 82,044.40
  4. Step 4: Simplify right side
    170,748.40x = 21,013,425,043.44
  5. Step 5: Solve for x
    x = 21,013,425,043.44/170,748.40
  6. Step 6: Final answer
    x = 123,066.60

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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.