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Finding the Fourth Proportional to 169,391.88, 254,035.80 and 117,137.16

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Solution

The fourth proportional to 169,391.88, 254,035.80 and 117,137.16 is: 175,669.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,391.88 : 254,035.80 = 117,137.16 : x
  2. Step 2: Convert to fraction form
    169,391.88/254,035.80 = 117,137.16/x
  3. Step 3: Cross multiply
    169,391.88x = 254,035.80 × 117,137.16
  4. Step 4: Simplify right side
    169,391.88x = 29,757,032,150.33
  5. Step 5: Solve for x
    x = 29,757,032,150.33/169,391.88
  6. Step 6: Final answer
    x = 175,669.77

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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.