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Finding the Fourth Proportional to 204,043.30, 306,064.95 and 141,835.30

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Solution

The fourth proportional to 204,043.30, 306,064.95 and 141,835.30 is: 212,752.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,043.30 : 306,064.95 = 141,835.30 : x
  2. Step 2: Convert to fraction form
    204,043.30/306,064.95 = 141,835.30/x
  3. Step 3: Cross multiply
    204,043.30x = 306,064.95 × 141,835.30
  4. Step 4: Simplify right side
    204,043.30x = 43,410,814,002.74
  5. Step 5: Solve for x
    x = 43,410,814,002.74/204,043.30
  6. Step 6: Final answer
    x = 212,752.95

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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.