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Finding the Fourth Proportional to 114,270.40, 171,405.60 and 55,221.40

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Solution

The fourth proportional to 114,270.40, 171,405.60 and 55,221.40 is: 82,832.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,270.40 : 171,405.60 = 55,221.40 : x
  2. Step 2: Convert to fraction form
    114,270.40/171,405.60 = 55,221.40/x
  3. Step 3: Cross multiply
    114,270.40x = 171,405.60 × 55,221.40
  4. Step 4: Simplify right side
    114,270.40x = 9,465,257,199.84
  5. Step 5: Solve for x
    x = 9,465,257,199.84/114,270.40
  6. Step 6: Final answer
    x = 82,832.10

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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.