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Finding the Fourth Proportional to 125,408.81, 188,246.23 and 111,076.16

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Solution

The fourth proportional to 125,408.81, 188,246.23 and 111,076.16 is: 166,732.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,408.81 : 188,246.23 = 111,076.16 : x
  2. Step 2: Convert to fraction form
    125,408.81/188,246.23 = 111,076.16/x
  3. Step 3: Cross multiply
    125,408.81x = 188,246.23 × 111,076.16
  4. Step 4: Simplify right side
    125,408.81x = 20,909,668,567.70
  5. Step 5: Solve for x
    x = 20,909,668,567.70/125,408.81
  6. Step 6: Final answer
    x = 166,732.06

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1.5x scale

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.