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Finding the Fourth Proportional to 168,755.70, 253,133.55 and 109,658.10

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Solution

The fourth proportional to 168,755.70, 253,133.55 and 109,658.10 is: 164,487.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,755.70 : 253,133.55 = 109,658.10 : x
  2. Step 2: Convert to fraction form
    168,755.70/253,133.55 = 109,658.10/x
  3. Step 3: Cross multiply
    168,755.70x = 253,133.55 × 109,658.10
  4. Step 4: Simplify right side
    168,755.70x = 27,758,144,139.26
  5. Step 5: Solve for x
    x = 27,758,144,139.26/168,755.70
  6. Step 6: Final answer
    x = 164,487.15

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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.