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Finding the Fourth Proportional to 245,047.45, 367,079.10 and 165,331.30

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Solution

The fourth proportional to 245,047.45, 367,079.10 and 165,331.30 is: 247,664.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,047.45 : 367,079.10 = 165,331.30 : x
  2. Step 2: Convert to fraction form
    245,047.45/367,079.10 = 165,331.30/x
  3. Step 3: Cross multiply
    245,047.45x = 367,079.10 × 165,331.30
  4. Step 4: Simplify right side
    245,047.45x = 60,689,664,805.83
  5. Step 5: Solve for x
    x = 60,689,664,805.83/245,047.45
  6. Step 6: Final answer
    x = 247,664.95

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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.