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Finding the Fourth Proportional to 169,881.57, 254,853.11 and 69,986.25

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Solution

The fourth proportional to 169,881.57, 254,853.11 and 69,986.25 is: 104,992.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,881.57 : 254,853.11 = 69,986.25 : x
  2. Step 2: Convert to fraction form
    169,881.57/254,853.11 = 69,986.25/x
  3. Step 3: Cross multiply
    169,881.57x = 254,853.11 × 69,986.25
  4. Step 4: Simplify right side
    169,881.57x = 17,836,213,644.70
  5. Step 5: Solve for x
    x = 17,836,213,644.70/169,881.57
  6. Step 6: Final answer
    x = 104,992.05

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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.