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Finding the Fourth Proportional to 204,900.94, 307,277.52 and 86,581.45

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Solution

The fourth proportional to 204,900.94, 307,277.52 and 86,581.45 is: 129,840.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,900.94 : 307,277.52 = 86,581.45 : x
  2. Step 2: Convert to fraction form
    204,900.94/307,277.52 = 86,581.45/x
  3. Step 3: Cross multiply
    204,900.94x = 307,277.52 × 86,581.45
  4. Step 4: Simplify right side
    204,900.94x = 26,604,533,234.00
  5. Step 5: Solve for x
    x = 26,604,533,234.00/204,900.94
  6. Step 6: Final answer
    x = 129,840.95

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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.