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Finding the Fourth Proportional to 114,551.80, 171,870.90 and 55,439.80

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Solution

The fourth proportional to 114,551.80, 171,870.90 and 55,439.80 is: 83,180.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,551.80 : 171,870.90 = 55,439.80 : x
  2. Step 2: Convert to fraction form
    114,551.80/171,870.90 = 55,439.80/x
  3. Step 3: Cross multiply
    114,551.80x = 171,870.90 × 55,439.80
  4. Step 4: Simplify right side
    114,551.80x = 9,528,488,321.82
  5. Step 5: Solve for x
    x = 9,528,488,321.82/114,551.80
  6. Step 6: Final answer
    x = 83,180.61

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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.