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Finding the Fourth Proportional to 169,699.08, 254,603.92 and 80,941.04

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Solution

The fourth proportional to 169,699.08, 254,603.92 and 80,941.04 is: 121,437.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,699.08 : 254,603.92 = 80,941.04 : x
  2. Step 2: Convert to fraction form
    169,699.08/254,603.92 = 80,941.04/x
  3. Step 3: Cross multiply
    169,699.08x = 254,603.92 × 80,941.04
  4. Step 4: Simplify right side
    169,699.08x = 20,607,906,072.88
  5. Step 5: Solve for x
    x = 20,607,906,072.88/169,699.08
  6. Step 6: Final answer
    x = 121,437.94

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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.