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Finding the Fourth Proportional to 122,117.80, 183,198.30 and 43,277.80

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Solution

The fourth proportional to 122,117.80, 183,198.30 and 43,277.80 is: 64,924.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,117.80 : 183,198.30 = 43,277.80 : x
  2. Step 2: Convert to fraction form
    122,117.80/183,198.30 = 43,277.80/x
  3. Step 3: Cross multiply
    122,117.80x = 183,198.30 × 43,277.80
  4. Step 4: Simplify right side
    122,117.80x = 7,928,419,387.74
  5. Step 5: Solve for x
    x = 7,928,419,387.74/122,117.80
  6. Step 6: Final answer
    x = 64,924.35

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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.