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Finding the Fourth Proportional to 169,998.61, 255,034.59 and 51,679.48

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Solution

The fourth proportional to 169,998.61, 255,034.59 and 51,679.48 is: 77,530.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,998.61 : 255,034.59 = 51,679.48 : x
  2. Step 2: Convert to fraction form
    169,998.61/255,034.59 = 51,679.48/x
  3. Step 3: Cross multiply
    169,998.61x = 255,034.59 × 51,679.48
  4. Step 4: Simplify right side
    169,998.61x = 13,180,054,993.21
  5. Step 5: Solve for x
    x = 13,180,054,993.21/169,998.61
  6. Step 6: Final answer
    x = 77,530.37

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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.