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Finding the Fourth Proportional to 238,337.40, 357,408.90 and 80,484.60

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Solution

The fourth proportional to 238,337.40, 357,408.90 and 80,484.60 is: 120,694.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,337.40 : 357,408.90 = 80,484.60 : x
  2. Step 2: Convert to fraction form
    238,337.40/357,408.90 = 80,484.60/x
  3. Step 3: Cross multiply
    238,337.40x = 357,408.90 × 80,484.60
  4. Step 4: Simplify right side
    238,337.40x = 28,765,912,352.94
  5. Step 5: Solve for x
    x = 28,765,912,352.94/238,337.40
  6. Step 6: Final answer
    x = 120,694.08

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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.