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Finding the Fourth Proportional to 169,698.83, 254,603.54 and 80,940.79

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Solution

The fourth proportional to 169,698.83, 254,603.54 and 80,940.79 is: 121,437.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,698.83 : 254,603.54 = 80,940.79 : x
  2. Step 2: Convert to fraction form
    169,698.83/254,603.54 = 80,940.79/x
  3. Step 3: Cross multiply
    169,698.83x = 254,603.54 × 80,940.79
  4. Step 4: Simplify right side
    169,698.83x = 20,607,811,230.24
  5. Step 5: Solve for x
    x = 20,607,811,230.24/169,698.83
  6. Step 6: Final answer
    x = 121,437.55

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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.