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Finding the Fourth Proportional to 114,205.51, 171,209.76 and 54,959.68

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Solution

The fourth proportional to 114,205.51, 171,209.76 and 54,959.68 is: 82,392.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,205.51 : 171,209.76 = 54,959.68 : x
  2. Step 2: Convert to fraction form
    114,205.51/171,209.76 = 54,959.68/x
  3. Step 3: Cross multiply
    114,205.51x = 171,209.76 × 54,959.68
  4. Step 4: Simplify right side
    114,205.51x = 9,409,633,622.48
  5. Step 5: Solve for x
    x = 9,409,633,622.48/114,205.51
  6. Step 6: Final answer
    x = 82,392.12

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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.