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Finding the Fourth Proportional to 111,155.40, 166,744.02 and 36,272.52

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Solution

The fourth proportional to 111,155.40, 166,744.02 and 36,272.52 is: 54,412.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,155.40 : 166,744.02 = 36,272.52 : x
  2. Step 2: Convert to fraction form
    111,155.40/166,744.02 = 36,272.52/x
  3. Step 3: Cross multiply
    111,155.40x = 166,744.02 × 36,272.52
  4. Step 4: Simplify right side
    111,155.40x = 6,048,225,800.33
  5. Step 5: Solve for x
    x = 6,048,225,800.33/111,155.40
  6. Step 6: Final answer
    x = 54,412.34

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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.