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Finding the Fourth Proportional to 204,874.52, 307,353.08 and 86,545.67

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Solution

The fourth proportional to 204,874.52, 307,353.08 and 86,545.67 is: 129,835.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,874.52 : 307,353.08 = 86,545.67 : x
  2. Step 2: Convert to fraction form
    204,874.52/307,353.08 = 86,545.67/x
  3. Step 3: Cross multiply
    204,874.52x = 307,353.08 × 86,545.67
  4. Step 4: Simplify right side
    204,874.52x = 26,600,076,914.76
  5. Step 5: Solve for x
    x = 26,600,076,914.76/204,874.52
  6. Step 6: Final answer
    x = 129,835.95

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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.