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Finding the Fourth Proportional to 114,425.40, 171,686.70 and 55,230.60

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Solution

The fourth proportional to 114,425.40, 171,686.70 and 55,230.60 is: 82,869.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,425.40 : 171,686.70 = 55,230.60 : x
  2. Step 2: Convert to fraction form
    114,425.40/171,686.70 = 55,230.60/x
  3. Step 3: Cross multiply
    114,425.40x = 171,686.70 × 55,230.60
  4. Step 4: Simplify right side
    114,425.40x = 9,482,359,453.02
  5. Step 5: Solve for x
    x = 9,482,359,453.02/114,425.40
  6. Step 6: Final answer
    x = 82,869.36

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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.