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Finding the Fourth Proportional to 114,186.60, 171,474.30 and 84,637.80

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Solution

The fourth proportional to 114,186.60, 171,474.30 and 84,637.80 is: 127,100.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,186.60 : 171,474.30 = 84,637.80 : x
  2. Step 2: Convert to fraction form
    114,186.60/171,474.30 = 84,637.80/x
  3. Step 3: Cross multiply
    114,186.60x = 171,474.30 × 84,637.80
  4. Step 4: Simplify right side
    114,186.60x = 14,513,207,508.54
  5. Step 5: Solve for x
    x = 14,513,207,508.54/114,186.60
  6. Step 6: Final answer
    x = 127,100.79

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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.