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Finding the Fourth Proportional to 125,842.20, 189,200.70 and 106,596.60

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Solution

The fourth proportional to 125,842.20, 189,200.70 and 106,596.60 is: 160,265.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,842.20 : 189,200.70 = 106,596.60 : x
  2. Step 2: Convert to fraction form
    125,842.20/189,200.70 = 106,596.60/x
  3. Step 3: Cross multiply
    125,842.20x = 189,200.70 × 106,596.60
  4. Step 4: Simplify right side
    125,842.20x = 20,168,151,337.62
  5. Step 5: Solve for x
    x = 20,168,151,337.62/125,842.20
  6. Step 6: Final answer
    x = 160,265.41

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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.