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Finding the Fourth Proportional to 55,844.40, 83,750.40 and 20,301.60

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Solution

The fourth proportional to 55,844.40, 83,750.40 and 20,301.60 is: 30,446.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,844.40 : 83,750.40 = 20,301.60 : x
  2. Step 2: Convert to fraction form
    55,844.40/83,750.40 = 20,301.60/x
  3. Step 3: Cross multiply
    55,844.40x = 83,750.40 × 20,301.60
  4. Step 4: Simplify right side
    55,844.40x = 1,700,267,120.64
  5. Step 5: Solve for x
    x = 1,700,267,120.64/55,844.40
  6. Step 6: Final answer
    x = 30,446.51

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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.